Storage holder clips for locating billiards snooker cue and fixing fishing rod.There are Two about 3mm holes in the inside center where the mounting screw goes into and screws into your fishing rod rack.The screw mount sits under the so the screw will not scratch your fishing rods.Each is easily mounted where you want.colour:blackMaterial: ABSsize:Inner diameter: Big clips: 23mmSmall clips: 17mm size: 38*28.5*21mmMedium: 28*23.5*14mmPackage Contents:10 * Big Storage Clips10 * Small Storage ClipsOnly the above package content, other products are not included.Note: Light 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.