Paramount Square Edge Wheels are made from 100% wool felt and are uniform in density. Designed to provide blemish free surfaces on metals as well as glass. All the buffs in this range have pinhole centers for use on tapered spindles at speeds up to 3450 RPM. The most popular Paramount Square Edge Wheel is the 4” x ¾” soft wheel shown here. We will be adding many more to our selection in the coming months. Paramount felt products are made in USA.