Our 70% Shade Black Knit Cover provides excellent UV protection and heat control in the backyard, garden, aviary, or carport. Don't worry about rips, tears, or fraying; knitted shade fabric is made from knitted polyethylene and has a lifespan of 7-10 years. Due to the construction, knitted shade material will not unravel if damaged. The edges of the cover are reinforced to ensure a long-lasting and durable product, with grommets every 2'