Premium Materials : Waterproof tarp is made of PVC vinyl, with a thickness of 14 mils and reinforced with rust proof aluminum alloy gaskets, the four corners are reinforced by plastic plates and small metal holes. Each tarp will undergo a tear test to ensure the durability of the product. Size And Weight : Clear tarp weight is 420 g/m , the eyelet diameter is 2 cm and the distance is 50 cm. Please note that the final size is slightly smaller than the stated cut size due to edge pleats. See Through Tarp : Our PVC clear tarp is 100% transparent, which does not block the view or affect photosynthesis. It can manage to keep the outer elements at bay and the warmth inside.