backing polishing pad suitable for almost any sander machines light weight, good qulity Have different sizes to meet various requirment.Using for polising materials two types:One is with velcro, can be used with velcro discsAnother is with PU leather 1. Plastic Backing Pad with Velcro 2. Apply to surf board, ambry, marble mesa, stainless steel plate, etc. Various kinds of wide materials polishing ...