This 12 in. deck rail planter is made from UV-stabilized resin plastic in a terra cotta finish. Its compression-fit design fits rail sizes 3.25 in. or 5.75 in. W, while smaller rails can be secured with screws or zip ties underneath. Optional punch-out drainage holes, frost-proof construction, BPA-free plastic, and indoor/outdoor use are verified features. The planter measures 12 in. W x 12 in. D x 9 in. H and requires no assembly. Use this planter to grow fruit, vegetables, or herbs on a 3.25 in. or 5.75 in. wide deck rail. For a smaller rail, secure the planter with screws or zip ties under the railing. Use it indoors or outdoors for container planting in a terra cotta finish.