4 Large Rectangular Rubber Feet Bumpers - .528 H X 2.777 L X 1.375 W - Made in USA .528" Tall x 2.777" Length x 1.375" Width Center Hole - Recess Dia .472 / Recess Depth .202 Non Marking High Quality Thermal Plastic Rubber / Durometer 87 Removable Metal Insert for Extra Strength / Accepts #10 Truss head bolt or .215 screw Made in the U.S.A. / RoHS & REACH Compliant