Eve's Bonsai Humidity Drip Tray 9" x 12" with Pebbles Overall size 9" x 12" to fit a 8" x 11" on the bottom of the pot Used to protect surfaces and maintain moisture levels around Bonsai between watering Tray has raised legs on the corners and underneath for increased support Made of Black Plastic Outside measures 9 x 12, Inside measures to fit bottom of a pot 8" x 11" Includes bag of pebbles