HXM Easy Use 20-30mm Universal Metal Barrel Mount Holder Bracket Fixed Tube Clip Clamp for Shotgun Rifle Gun Mount Flashlight Torch Hunting Camera (Black) Package include: 1x Metal Clip. Size : Diameter 20-30mm; Material: Iron; Surface: Matt Black Scope: Is widely used in assembling high quality LED light flashlight lock, practical Pocket Clip, fixed tube clips, Gun Optical Mount etc. Craft: This product uses multiple stamping bending forming processes, quality iron surfaces after polishing treatment, electrophoresis with Matt Black on the surface, so that it has a higher wear resistance.