Campmor Ground cloths are made from a sturdy, durable 6 mil clear polyethylene without grommets. Ground cloths protect your floor from rips, holes, and abrasions. They also add another layer of waterproofing to the floor and they keep the bottom of the floor relatively clean from mud, dirt and debris. Ground cloths should be trimmed or folded 2 4 inches shorter than the tent floor. If the ground cloth sticks out it can collect water between the ground cloth and the tent floor which could lead to water in the tent. Wt. 1 lbs. 8 oz. Weights may vary slightly due to variances in the polyethylene. Protect your tent floor from rips, abrasions and holes Trim to Size about 2 4 inches smaller than the tent floor Economical protection Weight 1 lbs. 8 oz. 6 mil polyethylene Extra layer of protection from water.