Made from high quality surgical grade stainless steel, which will never rust. More beautiful in person than the picture shows.
Comfortable! All edges are very smooth!
Cage length: 65 mm/2.6"
Inner diameter:35 mm/1.4"
hinged ring: 50.8 mm/2"
Materials: Stainless steel
The diameter of the ball ring have 5 Size:
S Size
Inside Dia: 3.8 cm/1.5"
M Size
Inside Dia: 4.1 cm/1.6"
L Size
Inside Dia: 4.4 cm/1.7"
XL Size
Inside Dia: 4.7 cm/1.9"
XXL Size
Inside Dia: 5 cm/2.0"