The Donut 4X Cock Ring (Black)
Rock Solid by Doc Johnson
SKU Registry
DJ-3701-28-2
Material Composition
High-Stretch TPE
Safety Rating
Phthalate-Free
Release Variant
11/29/2022
Mechanical Assessment
A classic-profile restriction ring engineered to manage vascular outflow. Fabricated from highly flexible, body-safe thermoplastic elastomer (TPE) to maintain structural engorgement, supporting sustained physical endurance and performance configuration thresholds.