Lizusidtsy Colour: black Material: aluminum alloy Package Contents: 8 x Step-up ring (including: 49mm-52mm , 52mm-55mm, 55mm-58mm, 58mm-62mm, 62mm-67mm, 67mm-72mm, 72mm-77mm, 77mm-82mm) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.