EVERGROW 4'x50' BLACK FREE 100 Zip Ties Included Commercial Grade Outdoor Privacy Fence Screen Cover with Brass Grommets Shade Windscreen Mesh Fabric Cloth Slat Yard Garden - 3 Years Warranty All 4 sides are edged (taped) with brass grommets 18" on center on all sides. Double grommets on every corner edge for extra strength. Fence screen is 88%-90% blockage which allows some air passage through it and reduces pressure on the fence. Fence screen is knitted 100% HDPE with UV stabilized to resist fading and retain material strength. Taped with 3" double-side PE black bindings 3 years warranty, under normal usage and weather, commercial grade, maximum UV- stabilized.