Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

Material: AluminumMin Diameter: 15mmSize: 46(W)X 35(H)mmRail Type: 20mm Picatinny / WeaverMade of Light Weight Aircraft AluminumFeature:It's a ideal mount for your scope， flashlight， etc.Precision Machined From Aircraft-grade Aluminum Alloy with Anodized Black Matte Finish.Overall Low Profile Crocodile Design and Light Weight Machine Cut for Optimal Tactical Applications.Robust and User Friendly Ergonomic Quick Detach/Lock Lever Mount， Fully Adjustable to Fit on Any Picatinny Rail.Tight Tolerance Control with Anti-rotation Feature to Guarantee Most Positive and Repeatable Zero and Re-zero Capability