Extra care in preventing edge burning of painted surfaces is built into these pads. The sides of the buffs can be used to polish hard-to-reach areas or uneven surfaces. The patented Round-Up edge retains its curve for the life of the pad. Featuring a recessed arbor that will fit the contours of any standard backing plate. Round-Up pads can be installed quickly and securely. The pads are constructed of 4-ply 100% wool yarn attached to Schlegel®'s patented flexible backing.