Construction The backing is much the plastic backings. It is harder and more difficult to be broken. High-density and uniform hook provide strong stickness and a long service life. Save Sander & MoneyThe Hook & Loop sander pads wear out before the machine does, so replacing the pads is a cost effective option. Easy Installation: Easy screw-on Installation. Attaches easily and hassle-free. Dust Collection Efficient 8-hole pad works with that have dust collection system. 8 dust collection holes that vacuum up the dust and debris into Dust Bag Assembly.Ultra convenient dust collection feature. Please check below compatible list before your order. for Replacement Sander Pad fori¼ 151281-08,DW4388 743081-8, 743051-7 151281-08 Fits most Track sander with 3 crews : BO5010/K, BO5021/K, BO5030/K, BO5031/K, BO5041/K xOB01Z : DW420/K, DW421/K, DW422/K, DW423/K, DW426/K, D26450, D26451/K, D26453/K, D26456 DW26451K, D26451 (Type 1) 5 Track Sander DW26453K, D26453 (Type 1) 5 Track Sander : 390/390K, 382, 343/343k, 343VS/343VSK : SV13YA Sander, SV13YB Sander Black+: 27708, 27707, 25708 : 900277080, 900277070. colour:black Material:metal size:125mm Package Contents: 1*Sander Pad NOTICE: If your sander is not mentioned above, please check if it fits your sander based on the following data: 5 inch dia, 8 holes and 3 screw, ESPECIALLY the distance between screw holes (1-7/16 inch) center to center and the screw hole's dia (9/32 inch). Only 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.