Made from low-density polyethylene, the Tomato Growth Cover creates a micro-climate which encourages the growth & development of tomatoes, (and other similar plants), for an earlier, heavier, better quality crop! It retains the heat of the day & reduces cooling at night. Its permeability provides airing & encourages humidification. Provides protection from inclement weather, insects & birds. Simply cut off the lengths required, slip over your plants & secure. Contains UV protection for long life. 0.6m (2') x 10m (33') roll.