Spidy Gear's patented design uses Mother Nature's web shape to secure even and uneven loads quickly and with style. Bed webb's have a stainless steel center rings with 'webs' that radiate out. This provides the net's strength at the center of the load where its most needed. Bed webbs are constructed of heavy duty 6mm 100% stretch shock cord material. Webb returns to original unstretched shape after use. Four popular colors available. Fits all domestic and imported downsize and full size pickup trucks. Large dimensions are 60" x 84" to 78" x 114".