Earth Science, 12 LB, 1,500 SQFT Coverage, 1 Step, Sun & Shade, Lawn Thickener Seed, All In 1 Fix For Thin Lawns, Includes Natural Fertilizer, Perennial Ryegrass, Kentucky Bluegrass & Creeping Red Fescue, Lawn Food & Patented Nutri-Lock Soil Conditioner, Nutri-Lock Technology Holds Nutrients In The Soil For Maximum Effectiveness, Reduces Nutrient Run Off & Waste By Up To 75%, Get Up To A 50% Thicker Lawn With Just 1 Application, Use Any Spreader, Water & Grow, 100% Guaranteed.