Sanding Sheet, Length 9 In., Width 5-1/2 In., Grade Ultra Fine, 1500 Grit, Abrasive Material Silicon Carbide, Backing Material Paper, Backing Weight A, Color Black, Series 401Q, Package Quantity 250 For industrial/occupational use only. Not for consumer sale or use. 3M Safety Data Sheet’s (SDS) are available on the 3M website at www.3M.com/sds