Our Clear Tarps are perfect for Greenhouses as they let in the suns rays that are needed for growing yourplants and keeps the bad rays out so they don't burn. Also good for set ups where you want a lot of filtered light coming through. Our clear tarps have string reinforcement throughout to make them stronger and so they will last longer. 3 Layer Heavy Duty Polyethylene, 12 x 14 Mesh Count, 14 Mil Thickness, 6oz per square yard, Reinforced Double Edges, Rope Reinforced Corners, 100% Water Proof, UV Protection, Heavy Duty Grommets every 18".