The cage has a glans pee opening

Smooth surface, stainless steel material, safe to use

Two styles of rings, Round rings and Arc rings, each ring has 4 sizes, please check the size you need when purchasing

Material: Metal

Color: Silver

Cage Length: 2.0 cm/0.78 inch

Net Weight: 138 g/0.30 lb/4.8 oz

Package: OPP Bag

The diameter of the ball ring have 4 Size:

40 mm/1.6 inch (S)

45 mm/1.8 inch (M)

50 mm/2.0 inch (L)

55 mm/2.1 inch (L)