3M 245 125mm. Plain (no holes). Stiff E-weight paper gives a strong backing and long product life. A fast cutting aluminium oxide mineral coated onto a heavy paper. Resin bond resists heat to prevent premature "burning". For initial and intermediate sanding on solid wood furniture, wood and metal door frames and other hard and soft wood, plastic and metal surfaces. Use on: Wood, Metal, Paints, Fillers, Plastics. Mineral: Aluminium Oxide. Backing: E Weight Paper. Coating: Open. Bond: Resin.