product description 1. Suitable for installation of Tape Switch Cables for all Tactical Flashlights and Lasers. 2. The Tape Switch Wire Guide System Can Help Users Fix Redundant Cables on Picatinny Rails, Allowing Users to Focus More on The Target Without Being Disturbed by Redundant Cables. 3. for 21mm Picatinny Rail Installation, Easy to Install, Sturdy and Durable. 3. Color: Black/Brown. 4. Weight: 0.295 oz. 5. Material: 7075 Aluminum. 6. Surface treatment: Hard Matte Anodized Surface Treatment. Packing List: 3 x Picatinny Cable Clips 1 x Allen Key