Material: Stainless Steel Plug Size: S Size: 6.6 * 2.7 cm/2.5" * 1.0" (27.2 g/0.06 lb/0.9 oz) M Size: 8.0 * 3.2 cm/3.1" * 1.2" (34.2 g/0.07 lb/1.2 oz) L Size: 9.0 * 3.9 cm/3.5" * 1.5" (52 g/0.1 lb/1.8 oz)