Our Self-Watering Rolling Planter has four double-wheel casters that roll effortlessly over floors, carpet, and even rough flagstone. A 6-1/2 quart water reservoir and water-level indicator help you to keep your plants well-irrigated and healthy. Water weekly, not daily! Large water reservoir keeps soil moist and plants healthy Choice of White, Terra Cotta, Granite or Green to match your home 15-1/4" sq x 13-1/2" H. Holds 22 quarts of soil Made of UV-stabilized plastic Gardener's Supply Exclusive