Material: ABS Color: Black Ring Dia:  Cage Size: 3.7 * 1.8 cm/1.4" * 0.7" 3.6 cm/1.4 inch 4.0 cm/1.5 inch 4.5 cm/1.7 inch 5.0 cm/1.9 inch 5.5 cm/2.1 inch Package: OPP Bag   Include 5 Ring