Item No: 00-0521 Brand: LippertMfg No: V000163302Wt: 53.50UPC: 848150015877
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 164 to 169-3/4 inch width box.