The CRL All Wool Felt Wheel is made from the highest quality Spanish Felt, this 3" (76.2 mm) diameter, 1-1/2" (38 mm) thick buffing wheel can remove scratches, stains, and discoloration from glass and mirrors. Used with Cat. No. 5701 Aluminum Adapter, this economical wheel can work wonders in the smallest of spaces. Also replaces the wheel on the Cat. No. 5703 Polishing Head Assembly.