Mystim The Duke Stainless Steel Cock Ring

If you want a no-nonsense, heavy-duty cock ring that feels solid and stays put, The Duke is exactly that. Made from 100% surgical stainless steel with a polished edged finish, it delivers a firm, non-elastic constriction that can intensify fullness and prolong firmness. As I’d tell a customer in store: this is a metal ring for people who prefer precision and longevity over the give of silicone or leather.

Technical Specifications

How to Use

Measure first: wrap a band or strip of paper around both testicles and the penis where the ring will sit, mark the meeting points, measure that length in millimetres and divide by π (3.14) to get the diameter. Repeat at different times of day — bodies fluctuate — and if you’re new to rigid rings choose a slightly larger size. Never put a rigid ring on an erect penis. The recommended method is to pass the ring over the testicles first, then slide the penis through so the ring sits comfortably at the base. Do not use for more than 30 minutes at a time; remove immediately if you feel pain, numbness or significant discolouration. Lubricant helps both fitting and removal; stainless steel is compatible with water-based and silicone-based lubricants, and a little lube makes taking it off much easier.

Cleaning and care

Because it’s surgical stainless steel it’s non-porous and straightforward to clean. Wash with warm water and mild antibacterial soap or a toy cleaner, rinse and dry thoroughly. For deeper sterilisation you can boil it briefly or use a medical-grade steriliser — the metal tolerates high temperatures. Store it dry and avoid abrasive cleaners that could scratch the polished surface.

For users who want a sturdy, non-flexible metal ring for firmer, longer-lasting engorgement.