FrostGuard Heavy Weight Row Cover - 83" x 500' Get a head start on the growing season by providing a more suitable microclimate environment for sensitive Also ideal for overwintering container stock&#44; and protecting plants from insects and other pests. Manufactured from 100 percent polypropylene&#44; spunbonded with UV stabilizers for long-lasting use. Seams are sealed with UV-stabilized&#44; hot-melt glue for strength and durability. Choose the deg of light filtration and frost protection for your crops and climate.