Feature●? Diameter: 6 inch●? Thread Size: 5/8-11●? 10mm EVA semi-rigid layer makes this pad excellent for high speed sanding and polishing flat surfaces●? Attachment method: Hook and Loop Fastener●? Max RPM: 8500Description Diameter: 6 150mm, density: Medium / layer: 10mm eva, thread: 5/8 - 11, interface: Hook and loop, max rpm: 8500.