Prime-Line M 6054 Frameless Sliding Shower Door Top Bracket, 3/4 inch, Flat Plastic Wheel, Steel Ball Bearings, White Product Description This shower door roller assembly is constructed of extruded aluminum and comes in a milled aluminum finish. It features a thru-glass binder post and screw for fastening the bracket to the top of the glass on frameless sliding shower door systems. The wheel is constructed of plastic; it features a flat edge and steel ball bearings for long-lasting, smooth operation. This frameless shower door top roller assembly bracket is used by many shower door manufacturers. From the Manufacturer This 3/4 In. roller comes affixed to a 3/4 In. offset extruded aluminum bracket. It fits through a hole drilled through your glass door. Used on frameless shower doors. Features Used on frameless shower door systems 3/4 in. outside diameter roller, bracket channel has 1/4 in. wide inside dimension Mill finish Extruded aluminum bracket, plastic wheel with steel ball bearings Please refer to the line art and compare to your needs before purchasing USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.