Using cloth as the , the service life is more than 2 than that of red sanding disc using paper as the .The flannelette is used reliably, The thickened and lengthened high-grade hook and loop is used to connect more firmly with the sander, and the sandpaper will not be separated from random orbital sander.Diamond anti blocking heat dissipation design,5-Inch 8 Hole Assortment Hook and Loop Random Orbit Sandpaper, The blue zirconia grit is commercial, avoid frequent replacement of sanding disc, per box(70-Pack).With process, the cloth base will not tear and sand will not fall off, so the grinding effect will be a little rougher than the red sanding disc (because the red sanding disc will change from 240 grit to 800 grit after grinding for a few minutes). It can be used by watering (not soaking in water).Universal design, glued to the orbital sander, can polish wood, metal, houses, furniture, fences, , bamboo, walls, etc. it can polish the objects you can of.Size: about 125mmMaterial:Aluminacolour:bluePackage Contents:70 * sanding disc