For Heavy duty, high quality clear poly tarp; 100% HDPE. Easy to use, neat installation. Aluminum eyelets are loaded around the hem spacing every 18" and four brass grommets with reinforced comer. protection: Blocks more than 70% of harsh sunlight. Wide application: Constructed with a multifilament grid For Whish is then laminated in LD polyethylene. Widely used for renovations, boat covers, roofing, construction and horticulture; ideal for applications. Water proof, Rot proof, Tear resistant, Arctic flexibility