50 Elastic Ball Straps. Replacement Roof Cover Only. 781893 / 496840 / 405094 / 122175. May be found on the sewn-in label on your current roof cover. Dimensions: 20′ L x 10′ W x 5.6′ H. This fabric meets the flammability requirements of CPAI-84. The fabric may burn if left in continuous contact with any flame source. The application of any foreign substance to the canopy fabric may render the flame-resistant properties ineffective. The canopy used with this roof cover is meant for vehicle, boat and other storage use. It should not be utilized as shelter for people gathering. The canopy used with this roof cover should not be used during heavy wind, ice, or snow conditions. The accumulation of snow and ice on the canopy roof may pose a safety concern. Under severe weather conditions, disassemble your canopy and store indoors.