6-GAL RAILING PLANT HOLDER - Transform your deck, porch, or balcony with bountiful blooms or a flourishing herb garden with this spacious railing planter box. Each side of the rail planter holds up to 3-gallons of soil, for a total capacity of 6-gallons. DURABLE AND LIGHTWEIGHT CONSTRUCTION - This tough plastic balcony railing planter is heavy duty but lightweight, supporting a total weight capacity of 16.2-pounds, so there’s ample space for a vibrant assortment of living or faux foliage. HEALTHY DRAINAGE - Each side of the deck rail planter has a removable elevated drainage insert that allows excess water to collect in the base of the flower box to protect roots from being oversaturated, and drainage holes can be drilled if you choose. VERSATILE USE - This long planter box fits porches, decks, and balconies with wood or metal railings 3 to 4-inches wide. Whether you use the porch planter for living flowers or to display faux blossoms, you’ll love the classic style and smart design. PRODUCT DETAILS - Materials: Plastic. Dimensions: (L) 20.75” x (W) 15.25” x (H) 8”; Interior: (L) 19” x (W) 5.5” x (H) 5.5” Each Side; Plastic Planter Box Capacity: 6 Gallons/16.2lbs Soil; Per Side: 3 Gallons/8.1lbs; Weight: 1.4lbs. Color: White.