This Tent is durable and easy to build. Its interior is a 99% reflective mylar lining that gives effective lighting setups of any power configuration. Our 2x2, 2x4, and 4x4 Tents feature privacy flaps that go over the zippers to hide them. They have three vents for regulating the flow of air more efficiently. The inner lining is a highly reflective and properly insulated material that maximizes the use of light and light retention, it is also air-tight and is water and light-proof. Features: -Lightproof -All socks have strings to allow them to be closed tight -Zippers zip easily. -Privacy flaps over the zippers, it's all black. No light leaks. Three vents for regulating the flow of air more efficiently. -Hanging bars Included -Easy cleanup - Includes a removable & water resistant mylar spill tray -The inner lining is a highly reflective -Properly insulated