Material: Metal Color: Sliver Cage Size: 3.7 * 1.8 cm/1.4" * 0.7" Ring Dia:  S: 3.6 cm/1.4 inch M: 4.0 cm/1.5 inch L: 4.5 cm/1.7 inch XL: 5.0 cm/1.9 inch XXL: 5.5 cm/2.1 inch