Check the listing for details. 3M (34440) Cubitron II Hookit Velcro Clean Sandpaper Sheet Roll, 40 Grit. Color: Purple, Condition: New. Listed at 48.99 USD. 3M™ Cubitron™ II Hookit™Clean Sanding Sheet Roll, 40+, 70 mm x 8 m, 34440 Use these 40+ grade sheets for stripping paint to metal, shaping and sanding plastic filler. Built with patented 3M Cubitron™ II precision shaped abrasive grains, these sheet roll abrasives cut faster and last longer than other sandpapers.These sheet rolls feature our unique kiss-cut scorring technology which enables users to be cleanly and easily converted into multiple sheet-lengths. For maximum dust removal, 3M has added hundreds of small holes which have been purposely arranged in a chevron formation. The triangular-shaped ceramic grains of Cubitron™ II are electrostatically oriented to form sharp peaks, each acting like an individual cutting tool that slices through paint and body filler, wearing evenly, and providing long life.