LOW-BALL cock-ring with attached ballstretcher.
A cockring with “spring” loaded ballstretcher.
The skin-flex silicone has enough stretch they all could wear it for a long haul.
Pure Platinum Cure Silicone
Lube safe: water-base, oil base, water/silicone hybrid, silicone lubes
Cleaning: detergent and hot water, dishwasher, or soak in bleach-water solution