The Fein Triangular Sanding Sheet is ideal for sanding natural and artificial stone. The sheet is unperforated and has a hook and loop attachment. The sheet fits AFSC 18 QCSL, AFSC 18 QSL, FSC 500 QSL, Fein Cordless MultiTalent QuickStart, Fein MultiMaster Cordless, Fein MultiMaster Top, Fein MultiMaster Start Q, Fein MultiMaster QuickStart, Fein MultiTalent Start Q, MOtlx 6-25, Fein Professional Set Wood, AFSC 18 QSL Wood, Fein Professional Set Caulking, and FSC 2.0 Q.