Material: 304  stainless stee
Ergonomically shaped for discrete and comfortable wear.
 
The whole set includes:
1. One cage. 
2. One ring. 
3. One brass padlock with two keys.
Weight: net weight about 160 g
Size:
Cage size: detail in the picture
Ring size: 3 size to choose(40mm/ 45mm/50mm), you can choose only one ring from these sizes.
One cage comes with  only one ring.