Finish: Black Bronze
Material: Polycarbonate
Random Color
Size: The cage length is 3.25" with an inside diameter of 1 3/8". The rings come in 5 sizes: 1.5", 1 5/8", 1.75", 1 7/8" and 2" diameters. All 5 rings are included with the device to allow you to swap them over to find the best fit for you.