Features: 1. Compatible Models: It Is Compatible With for Digital SLR Cameras. 2. Function: It Can Protect Your Camera'S Internal Components And Lens From Dust, Moisture And Other External Factors. 3. Material: Made Of High Quality Metal Material 4. Installation: Remove The Camera Lens, Screw The Lens Into The Machine Cover And Lens Cover. 5. Portable And Easy To Use Description: Model: for size: 52 x 18 x 4mm(diameter x height x thickness) Material: Metal colour: silver Package Contents: 1 x Lens Back Cover Only the above package content, other products are not included. Note: Light reflection 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.