Material: Metal Color: Silver Size: 9.5 * 3.5 cm/3.7 * 1.4 inch Net Weight: 205 g/0.45 lb/7.2 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)