3" fine-celled white foam is ideal for final finishing. Hook backing for easy attachment to back-up pad. Ideal for polishing in small areas. Use with glaze for swirl removal. Great for use with Dynabrade 18055 and 10390 3" Buffers The less-dense white foam isused with polishes, light swirl removers, and prewax cleansers. The foam removes very light imperfections, including swirls and light oxidation.