Curlex® excelsior blankets are specifically designed to promote ideal growing conditions for grass seed, while simultaneously protecting topsoil from wind and water erosion. Since the enactment of Phase II of the Clean Water Act, many municipalities have written QuickGRASS® into their building codes. Phase II affects small construction sites of just one acre or greater in size, impacting home builders and contractors. Features fast, easy installation with superb water retention to protect seeds from the sun's drying heat. This material enhances grass seed germination, protects seed from birds, has barbed fibers to help product “cling” to the soil unlike other products, is degradable - no need to remove before mowing. Complies with storm water management regulations. Grass seed is not included.