Hydro Mousse - Liquid Lawn Refill Pack, 2lb Bag - Covers up to 400sqft HydroMousse Refill Bag is the easy to use refill solution to your HydroMousse Kit Eco-friendly Spray n Stay Technology attaches the seed to the soil and reduces the seeds water surface tension allowing it to absorb more water High quality seed mixture blends perfectly with your existing lawn - Covers up to 400 Square Feet Quick and easy  the grass grows where you spray it - Eliminates guesswork by clearly showing you where you're planting Great for dry spots, dog spots, high traffic areas, and shade