Stability and opacity are the hallmarks of COURTMASTER Classic. This model's fabric has been "heat-set", guaranteed a billow-free, ripple-free windscreen. 100% polypropylene Tensile strength: Warp 295 lbs. Fill 145 lbs. 5 oz/sq. yd. 4-YEAR WARRANTY (against defects in fabric and manufacturing, pro-rated) Please note: Cost is calculated per square foot. Courtmaster Tennis Equipment 112-101-6'