Algreen 11204 Self Watering Square Modena Planter, 22-Inch, Matte Granite Contemporary Indoor/Outdoor Planter with Self-Watering Level Indicator Manufactured from a Resilient and Durable Polymer Frost Resistant and UV Stabilized to Provide Protection from the Sun and the Elements Removable Internal Liner and Caster Wheels on Planter Base Makes Moving and Planting effortless Available in a Range of Elegant Glossy Colors as well as Sophisticated Matte Tones to Suit any Decor