Double Plastic® Outdoor Sun Shade Sails are made of UV protected high density polyethylene (100% HDPE) shade fabric with strong stitched seam. With Durable Stainless Steel D-rings in each corner make the sun sails easily attached to any sturdy connection point to provide sun protection and personal design where you need it.Double Plastic® Outdoor Sun Shade Sails are widely used for a patio, lawn, garden, pool, bbq areas,pond, deck, kailyard, courtyard, backyard, dooryard, park, carport, pergola, sandbox, driveway or other outdoor occasions.