Diamond Compound is available in 5-gram and 10-gram syringes that make application easy. Graduated marks along the side of the syringe indicate amount. Apply the compound in tiny dots and spread evenly across the pad, add a few drops of diamond extender fluid and spread with a fingertip. Rotate the part being ground and check frequently for overheating. Add a drop of extender fluid to cool off the work piece. Recharge the plate only when necessary as the diamond lasts a long time. Price is size dependent.