The ProSand Multi-Air Cyclonic A975 medium grit paper H&L center hole vacuum disc features seeded-gel, P-graded ceramic alumina abrasive and a laser-cut vacuum hole system that effectively removes dust, keeping your workspace clean. Ideal for sanding aluminum, fiberglass, wood, and composites, it offers an easy hook and loop backing. The latex-saturated, fiber-reinforced C-weight backing ensures durability, while the open coat and non-pigmented stearate resist loading and color transfer.