Check the listing for details. Dewitt Reflective White/Black WovenGround Cover 2FT,3FT,4FT,6FT,12FT x 300FT. Color: White over Black, Condition: New. Listed at 60.00 USD. Reflective White/Black Ground Cover is a 3.8oz, UV-stabilized, white woven polypropylene fabric woven to a black polypropylene fabric. It is a strong, heavy fabric, which allows it to be more resistant to tearing, puncturing and weed penetration. Reflective white fabric increases yields by allowing the lower canopy of plants to receive light exposure. Black fabric underneath blocks sunlight from reaching weeds. This fabric is permeable, allowing water and nutrients to pass through. It is excellent when used in growing operations. Striped every 12 inches to aid in plants alignment and is UV-Stabilized to last in direct sunlight. Sizes: RWB2300 - 2ft x 300ftRWB3300 - 3ft x 300ftRWB4300 - 4ft x 300ftRWB6300 - 6ft x 300ftRWB12300F - 12ft x 300ft folded and rolled to 6ftRWB15300F - 15ft x 300ft folded and rolled to 7.5ft