BA-09 Lock Mechanism:stealth lock(magic lock/lock cylinder) If the measurement instructions are

If the measurement instructions are not carefully read

Glans Retaining Ring Inner Diameter&Glans Length(determine where to set the glans ring)

L style option's U shape inner dimensions: : width 21mm

If you think the text cannot accurately describe your requirements

if you are not a customer who has purchased the equipment applied this screw

BA-09 Lock Mechanism:stealth lock(magic lock/lock cylinder) If the measurement instructions areMaterial: 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