Strap-on options are harness-mounted or wearable dildos designed for penetrative play, letting the wearer take an active role. They come as classic harness-mounted setups, strapless internal-anchor dildos, or hollow shells that fit over a penis or prosthetic.
At a glance
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What it is: Wearable dildo system, harness-mounted or internal-anchor, for penetrative play
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Best for: Role-reversal, hands-free penetration, and partnered exploration of different dynamics
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Main types: Harness-mounted, strapless with bulb anchor, or hollow shell design
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Materials: Firm or dual-density silicone, TPE, flexible PVC, or metal base plates
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Base system: O-ring attachment to harness, internal bulb anchor, or penis/prosthetic fit
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Sizing: Match harness fit, shaft radius, and internal bulb or shell diameter to body
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Lubrication: Essential for partner comfort; water-based or oil-based depending on material
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Care: Wash with warm water and mild soap; check harness straps and O-rings regularly
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About Strap on Options
Strap-on options are penetrative sex toys that mount to a harness, sit inside the wearer's body, or fit over existing anatomy. They let the wearer take control of depth, pace, and angle during partnered play. Materials range from soft, body-safe silicone to flexible TPE shells and rigid metal base plates, each chosen for comfort, durability, and secure attachment to a harness system.
These setups work for many play styles: role-reversal, hands-free motion, extended sensation, or exploring different positions without changing who leads. if you're new to this or experienced, the right fit matters for safety and pleasure. Strap-On Sex Toys come in a range of sizes, materials, and base designs to suit different bodies and preferences.
What makes Strap on Options different
Unlike standard dildos, strap-on options anchor securely to your body so both hands stay free during play. The harness distributes weight and motion evenly, letting you control rhythm and depth without fatigue. Because penetration happens at a different angle than with handheld use, comfort for both partners depends on good fit, clear communication, and adequate lubrication. Lubricants and Lotions are essential for reducing friction and protecting delicate tissue during longer sessions.
Types of Strap on Options
Each type suits different play styles and comfort levels. Choose based on the motion you want, how close you need to be, and what fits your body.
Harness-mounted dildos. A dildo attaches to a harness or waistband via O-ring, letting the wearer penetrate their partner hands-free. This is the classic pegging setup, best for role-reversal play or when the wearer wants full control of pace and depth.
Strapless dildos. An internal bulb anchors inside the wearer's body, with no external harness straps needed. This design creates closer body contact and shared motion, ideal for intimate penetration without visible gear.
Hollow shells. These fit over a penis or prosthetic, extending length or girth for shared penetration or strap-on play. Water Based Lubes work well with these shells to reduce friction and keep motion smooth.
How they compare
| Model |
Material |
Best for |
Control or Base |
Safety |
| Harness-mounted dildo |
Firm silicone with O-ring base |
Role-reversal, hands-free partner penetration |
O-ring attachment to harness, wearer controls depth and pace |
Check O-ring fit and harness stability before use |
| Strapless dildo |
Dual-density silicone with bulb anchor |
Hands-free, intimate body contact and shared motion |
Internal bulb holds position; wearer motion drives penetration |
Ensure bulb fits comfortably; use plenty of lubricant |
| Hollow shell |
TPE or flexible PVC over silicone |
Extension, shared penetration, or penis-plus-sex toy play |
Fits over penis or prosthetic; base plate for stability |
Check internal diameter fit; confirm material compatibility with lubricant |
| Metal base harness-on |
Silicone shaft, aluminium base plate |
Advanced play, heavier dildos, or longer sessions |
Rigid metal base locks to harness; distributes weight evenly |
Inspect base plate and attachment points regularly |
How to choose a strap on option
Start by thinking about what role you want to play and what kind of motion feels right. If you're the wearer and want hands-free control, a harness-mounted dildo gives you the most freedom. If you prefer close contact and shared rhythm, a strapless dildo might suit better. For extension or penis-plus-sex toy play, a hollow shell works well.
Next, measure carefully: your waist or hips for harness fit, the shaft radius for comfort inside your partner, and any internal dimensions if you're using a strapless or hollow design. Check that the O-ring or base attachment is sturdy and compatible with your harness. Use plenty of lubricant to reduce friction and make entry easier for your partner. Oil Based Lubes last longer during longer sessions, but check that they're safe for your dildo material—silicone dildos work best with water-based or silicone-safe lubes.
Tips from the Adultsmart team
Hard-won pointers from the Adultsmart team, alongside our panel of sexologists, educators, and adult-industry contributors. Meet our experts →
After years of helping customers with strap-on options, the biggest mistake we see is skipping the fit test. A harness that's too loose will slip during play, and a dildo shaft that's too wide causes discomfort fast. Always try your harness on before your first session, and have your partner give feedback on shaft size and angle. Starting smaller than you think you need is smart—you can always go bigger later, but forcing an oversized shaft causes pain and kills the mood.
Communication is everything with these setups. The wearer can't always feel what their partner is experiencing, so check in often. Start slow, use plenty of lubricant, and let your partner set the pace at first. Many couples find that the wearer rocking gently while the receiving partner controls depth works better than fast thrusting, especially early on. Take breaks if anyone feels sore or uncomfortable.
Harness fit changes over time, especially if your body shifts or you gain or lose weight. Check your straps and O-rings before each use—wear and tear on the attachment points can cause slipping or damage. If you're mixing different dildos with the same harness, confirm that each shaft's base fits the O-ring securely. A loose connection during play is frustrating and risky, so don't assume one dildo will fit the same way as another.
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Please read — safety first. Charge only with the supplied cable and keep the charging port dry unless the sex toy is waterproof-rated. Pair and update through the official app, and switch the device off fully between sessions so the motor and battery aren't left under load. Never share between partners, or between anal and vaginal use, without cleaning the item first or using a fresh condom. As porous materials can harbour bacteria, use a condom over them for sharing or easy clean-up. This information is general in nature only and is not medical advice; it does not account for your individual circumstances. If you have a relevant health condition or experience any persistent discomfort, discontinue use and seek advice from a qualified medical professional. |
Care and cleaning
Clean your strap-on option with warm water and mild soap after every use, paying attention to the base, shaft, and any crevices where lubricant collects. Dry it thoroughly before storing. If your dildo is silicone, avoid oil-based lubricants unless the product explicitly says it's silicone-safe. Check your harness straps and O-rings regularly for signs of wear, and replace them if they become loose, cracked, or damaged. Store in a cool, dry place away from direct heat or sunlight.
Learn more
Getting the angle and motion right takes practice. Strap On Positions explores setups and techniques that work for different body types and preferences. Reading about what others find comfortable can help you and your partner figure out what suits you best.
Why shop Strap on Options at Adultsmart
Keen to get this right the first time? Adultsmart stocks strap-on options in a range of sizes, materials, and styles, with detailed product information so you can pick exactly what fits your body and play style. All our products come in discreet packaging and billing. Real advice, body-safe products, and discreet delivery Australia-wide.