Unique “Water Dam” design holds up to 1.5 gal of water per square yard—water and dirt stays put. Features - 24 oz (per sq yd) solution-dyed polypropylene fabric construction - Universal cleated backing (for placement on carpeted floors) - Bi-level surface removes/stores dirt & moisture - Rubber reinforced face nubs - Stain resistant - Anti-static - 3/8" thick - 1/Each