Metal Cages
Resin Cages
Flexible Silicone Cages
Plastic Cages
Urethral Plug Chastity Devices
Electric Cock Cages
Holy Trainer
Pink Cock Cages
Male Chastity Devices
Here's an accessory ring made of stainless steel compatible for Put a Ring On It Metal Cage
Diameter
40 mm (1.58 in);
45 mm (1.77 in);
50 mm (1.97 in)