Material: stainless steel
Chastity cage overall length is 40mm
Penis tube inner diameter is 32mm
Base ring options: 36mm(1.42inch),40mm(1.57inch),45mm(1.77inch),50mm(1.97inch)
If these exsiting base ring sizes doesn't fit you,you can choose customize base ring option to custom a new size base ring for this cage,and fill the base ring size(diameter) in the textbox.