Intake Outlet Socks: 4 x 7 inch double extract socks, 2 x cable socks. Vents: 3 x outside passive vents with MicroMesh bug-screen. Valuebox 36"x36"x72" Hydroponic Grow Tent with Window makes it very convenient for you to take a look to observe your plant’s growth. The tent is made of 600D material, durable zippers and double stitched for perfect light blocking and long-term use. Valuebox grow tent make it perfect environment for your plants to thrive!