Heavy Duty Steel
The \ »Themis\ » – Glans Ring with Threaded Screws will give you more painful pleasure than just a extra long lasting erection.
It has six screws that can be tightened with an Allen wrench (included) to whatever tightness you desire.
Material: Stainless Steel
Plug Length: 6.25 cm/2.5 inches
Insert Length: 5.6 cm/2.2 inches
Plug Dia: 0.7 cm/0.3 inches
Ring Inside Dia: 3.2 cm/1.3 inches
Spike Length: 1.6 cm/0.6 inches