Combatable models: This makita 125mm chainring is suitable for Makita BO5010 or KBO5030 or KBO5031 or KBO5041 or KXOB01Z DeWalt DW420 or 420KDW421 or 421KDW423 or 423KDW426 or 426KD26453 or 26453KD26451 Porter cable 390 or 390K382343 or 343k343VSK. PU material: This sanding pad is made of PU material, which is durable. Sander pad of this type of material can guarantee excellent sanding disc smoothness and polishing effect, so as to achieve the effect of not hurting the user. Easy to use: This 8-hole sanding disc has 3 built-in mounting screw holes and a hook and loop design, it can make installation more quick and easy and for quick sandpaper changes. Special designs: This sanding disc is designed with 8 holes, can work with sanders with dust collection system. This dust collection feature of this thumb pad is super convenient, 8 dust collection holes which effectively suck dust and debris into the dust bag assembly. Size of this sander pad: The diameter of our mekita sanding pad is 125mm, with 8 dust holes and 3 screw holes, the diameter of dust holes is 11.5mm, that of screw holes is 4mm, the thickness is 11 .5mm. Before making your purchase, please make sure our sander pad fits your sander. Quantity delivered: 1 piece Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.