DeWitt® Straw Guard 200 Seed Germination Material 4ft x 50ft Roll Helps with faster germination, prevents seed from washing away, prevents soil erosion, saves water and is non-toxic. Material is lightweight and easy to use making it perfect for slopes. Each roll includes 12ea 4in biodegradable stakes. Single photodegradable netting on top of straw fibers. Safe for the home, children and pets.