1 oz Frost Cloth Freeze Protection 1oz Plant Germination Blanket Plus Other Sizes In This Listing (7' x 100') Light Weight, 1 oz. Permeable Fabric. Great for germination and light frost conditions. For colder climates where frost protection is desired, heavier weight fabrics in description below. Excellent microenvironment for newly seeded grass and plantlings Allows Water and Light in, UV Treated, Reusable Can be Left on in Sunny Days Without Fear of Foliage Burn