X-Treme Blackout Canvas 5' X 100'

X-Treme Blackout Canvas completely blocks all exterior light and contains all interior light. Blackout canvas is the same material used in many popular grow tents. Highly reflective, textured silver layer on heavy-duty 600d ballistic nylon fabric creates the most rugged reflective material on the market. A DIY grower favorite – get creative and build your own custom grow tent/room.