Urethral Plug Cock Ring made of body safe stainless steel.Designed for deep probing, its ring will lock perfectly under the head of your cock, allowing it to stay on for as long as you need it. Material : Stainless steel Ring diameter 30mm Plug 7mm at the widest point, 40mm able length. Color: Silver Use water base lubricant Packed in Blister package for better protection.