Double your growing room with this Hydrofarm Black And White Poly Film. This heavy duty, waterproof film is a great alternative to metalized film. Simply unroll the black and white film and custom fit it to your garden. Use the white side for walls and floors and take advantage of its 90 percent reflectivity. Flip the film over to the black side when you want to block light and sunshine, it is completely light resistant. When you add this plastic poly film to your walls, there is no structural changes to be made and no expensive heating lights to be purchased. You can rely on this Hydrofarm Black And White Poly Film to provide more grow room and attract and block light for your plants.

• Double the efficiency for your grow room with this 100 x10 Foot Heavy Duty Waterproof Poly Film
• Use the white side for walls and floors, taking advantage of the material's 90 percent reflectivity
• Block out light and sun with the light-resistant black side
• This film can help substitute expensive lighting and heating additions and adding film to your walls requires no structural changes
• The heavy duty plastic is 4 and 5.5mm thick. The rolls are 3 feet wide, but fold out to be 10 feet wide
• Easy to handle
• Dimensions( L x W): 100 x 10 feet
• Weight: 27.3 pounds
• Manufacturer warranty: 1-year warranty