Yaheetech Black Waterproof Indoor Germination Grow Tents Room Hydroponic Grow Tent 24 x 24 x 48inch(L x W x H) Heavy duty 600D Oxford fabirc as the outer surface Silver waterproof PVC and Metalized film as inner lining High strength metal frame with durable connectors Provides the ideal environment for germination or hydroponic needs Great for light retention, air-tight and is water and light proof