to make the cage more secure(if you have had PA piercing)To make hollow urethra
If the measurement instructions are not carefully read
If you think the text cannot accurately describe your requirements
Frenum Hook Depth(it is about where to set frenum hook
if you are not a customer who has purchased the equipment applied this screw
BA-09 Lock Mechanism:stealth lock(magic lock/lock cylinder) to make the cage moreMaterial: Stainless Steel Titanium The below 3 sizes is must needed: 1. Chastity Cage Overall Length2. Penis Tube Inner Diameter 3. Base Ring Inner Diameter For other sizes,such as the pee gap,it is 8 10mm normally,but it is customizable too,so if you have other sizes demand,you can specify the size details in the corresponding text box. For more style details,such as adding scrotum bar,PA hook,. etc. you can specify your demands in the corresponding