Velcro sanding disc Size:115*140mm. Grit:P40-P400 Material: Aluminium oxide Sticker on back.. Velcro sanding discSize:115*140mm.Grit:P40-P400Material: Aluminium oxideSticker on back Feature: Velcro disc is made of flannel coasted on the abrasive paper or cloth backing. It can be punched to circular, triangle, or other special shapes. It is easy to be fixed on hard rubber disc of pneumatic or ...