Eve's Bonsai Humidity Drip Tray 11" x 13" with Pebbles Overall size 11" x 13" to fit a 9" 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 Strong Recycled Eco Friendly Bamboo Fiber Outside measures 11 x 13, Inside measures to fit bottom of a pot 9 x 11 Includes bag of pebbles