Zengi Picatinny/weaver Rail Offset Flashlight Laser Holder, 45 Degree Flashlight Laser Mount Big Thumb Nuts and Locking Plate for Easy and Quick Installation Made from High Quality Aircraft Grade Aluminum Alloy Designed to install a Flashlight, Laser Sight or Rifle Scope onto Picatinny/Weaver Rail Ring Diameter: 25mm Suitable for flashlight with 1''(25.4mm) Tube Matte Black Finish