●Pack contains 1 each: 600 grit, 800 grit, and 1000 grit industrial quality sanding belts ●Silicon carbide grain | closed coat | heavy duty y-weight polyester cloth backing ●Precision engineered bi-directional tape joint, anti-clogging stearate, and resin over resin bonding for long belt life ●Factory direct | hand built in usa by Red Label Abrasives | money back guarantee