Item No: 00-0517 Brand: LippertMfg No: V000163298Wt: 45.50UPC: 848150015730
It is made of anti-scuff/ anti-mildew fabric and has white castings. It automatically extends or retracts with the slide-out and extends up to 50 inch. It is used for 140 to 145-3/4 inch width box.