[Size] 90 x 90 x 90 mm, 6 holes, suitable for all ordinary triangle sanders/multi-function sanders, from coarse to fine - 6 different grit sizes: 40#, 60#, 80#, 120#, 180#、240# Widely used: Use our premium sanding accessories to work quickly and precisely on wood, paint, varnish, plastic, plaster and metal surfaces. [Material] Aluminum oxide, durable and anti-static, a good choice for grinding and polishing Backing: Self-adhesive abrasive triangle, easily attaches to the multi-function tool [Package Included] 72 pieces, 12x#40, 12x#60, 12x#80, 12x#120, 12x#180, 12x#240