Metal Enclosed Chastity 

Check out the Fully Enclosed Steel Chastity device! The futuristic design brings the excitement by just imagining locking your Sub in one of these Steel Toys. Unique design allows long-term wear which is a dream for every Keyholder out there.

You can find the more precise measurements in the pictures. 

Round Penis ring: 1.57 inch/40 mm - 1.77 inch/45 mm - 1.97 inch/50 mm

Cage total length : 1.97inch/50mm

Material: High-Quality Medical Grade Stainless Steel 316 L, no chrome plating, no rust guaranteed.

To ensure proper fit, measure the width of your cock (take that measure at the base). Once you know your diameter, you can choose the size that will fit you the most, by its size and comfort.