Hot Leathers JWR2134 Men's Silver 'Quantum Mechanic Skull' Stainless Steel Ring Features Made of 316L Stainless-Steel Hot Leathers- Established 1983 Hot Leathers- Established 1983 (The Leader in Motorcycle Apparel) Add Some Edge to Your Style by Donning Your Fingers in One of Our Biker Rings. All Rings Are Constructed Using High Quality 316L Stainless Steel for Long Lasting Durability.