Item No: 00-0518 Brand: LippertMfg No: V000163299Wt: 47.50UPC: 848150015785
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 146 to 151-3/4 inch width box.