Prime-Line Products D 1502 Roller, 1-1/4 in. Outside Diameter, Steel w/Ball Bearings, Concave Edge Wheel This steel ball bearing wheel is used to repair damaged roller assemblies or wheels found in patio sliding glass and screen doors 1/4 in. inside diameter x 1-1/4 in. outside diameter x 5/16 in. wide/thick Includes axle bolts and nuts Steel wheel with steel ball bearings and steel inner race