Round plant saucers for underneath pots, planters, and grow bags. Contains excess water to keep your deck, patio and other surfaces free from runoff to prevent moisture stains. Trays can also act as a water reservoir during warm weather months to help keep plants hydrated. They are made in the USA from clear durable plastic. Each saucer has an airflow bottom design that does not trap moisture or dirt under the saucer. Saucers de-nest easily; they will not stick together.