Item No: 00-0501 Brand: LippertMfg No: V000251478Wt: 57.50UPC: 848150019035
It is made of anti-scuff/ anti-mildew fabric and has black castings. It automatically extends or retracts with the slide-out and extends up to 50 inch. It is used for 176 to 181-3/4 inch width box.