6" Compounding Sponge Pad: 150mm diameter x 50mm thickness. Foam compounding pad used to apply compound to remove sand scratches and swirls. Convoluted foam face design holds compounds better, i.e., reduces slinging of compound (compared to Lint system), while the rounded edge pad for added protection. The foam pad cleans when damp; buffs when dry. Quickly cleans and removes scuff marks and enhances Gell Coats.