Professional tool for commercial or occasional use Hook/Loop sanding discs suitable for most sanders Designed for the automotive refinishing industry This disc is backed with Hook/Loop cloth for easy installation 6 hole design eliminates clogging and aids dust extraction 6 hole design also reduces the amount of dust which means it can no longer collect in lumps on the abrasive surface Eliminating the problem of dust clogging which causes defects in the sanding surface Disc size 150mm Pack of 50 discs 40 grit so suitable for all materials including metal / wood etc SET INCLUDES THE FOLLOWING 50 x 150mm discs 40 grit