The yellow/white foam soft Flexpad is basically used for finish sanding. It`s very soft so you should run it at slower speeds than the rest. It has a white harder shell foam top, so it flexes a little different than the #FS8C all yellow pad. The white foam on top will direct the cutting edge more towards the outside edge of the pad when sanding. Available with a cloth face for use with Velcro hook face for use with hook & loop sandpaper discs. Maximum RPM 1750.