These ball stretches are made from super soft Liquid Silicone, they are perfect for if you want to have something tugging your balls all day long.

Measurements:
Height: 0,8, 1,2 or 1,6 inch ~ 20, 30 or 40 mm
Inner Diameter: 1,3 inch ~ 34 mm
Thickness: 0,24 inch ~ 6 mm