40' x 100' blue/black tarps- 10X10 Mesh Count, 8 Mil Thickness, 4.8 oz per square yard, aluminum grommets Approx. Every 36 inches with rope reinforced corners and eyelets. All of our blue/black poly tarps are weather-proof- providing 100% UV Protection and Shade. Each tarp is Waterproof, Mildewproof and Rotproof.