7 x 1-1/2 Green Foam Polishing Pad - Fits 6 backing plate, use with rotary tool. Product Features:Great Residue Control, Heavy Swirl Remover, Polishing Gelcoat and BoatsCenter Ventilated Cooling Channel - Dissipates heat away from the center of the pad, reducing temperature, increasing durability. Also allows you to easily and perfectly align pad to the backing plate.Precision Taper - The tapered edge allows the technician access to tighter areas and polish with absolute precision. The beveled edge offers a smooth rotation and minimizes grabbing and drag.