Material: Metal Color: Silver Size: 8 * 3.5 cm/3.1 * 1.4 inch Net Weight: 208 g/0.46 lb/7.3 oz Package: OPP Bag   The diameter of the ball ring have 3 Size: 40 mm/1.6 inch (S) 45 mm/1.8 inch (M) 50 mm/2.0 inch (L)