The 7 Rings of Hell are made up of a series of nickel plated steel rings and is attached together by a leather strap. The first ring is for your cock and the balls the rest of the rings are to secure the penis.
Beginners SM Bondage Kit
Sperm Stopper with Glans Ring
FELIX Flexi Tube Silicone Steel Cum Thru Penis Plug
Stainless Steel Ball Stretchers