SMART GRAVEL is an eco-friendly product, made entirely from recycled plastics. Use ARQLITE in the base of your pots to keep your roots healthy by improving drainage and avoiding excess water. You can also use ARQLITE as a top dresser, to decorate your pot and preserve soil. Ideal for all home gardening. It's light, durable, clean, 100% recycled and safe for water and plants. Avoid root rot with effective drainage! We are fighting plastic pollution together. For every bag of ARQLITE Smart Gravel that you purchase, you are deviating over 4 lbs of plastic from the environment.