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