The Stanley Half Sanding Sheets has been designed for medium finish sanding, especially for material removal on flat surface applications. The sheets can be used on materials such as metal, wood and pvc. The sheets are suitable to attach to most half sheet sanders. The sheets have punched holes in them for improved dust collection and a reduction in clogging. The 150 grit type means this disc will offer a finer finish with less material removal. Comes with – 10x 150G Half Sanding Sheets.