Save the floor space on your deck or porch and raise flowers up in the Apollo Rectangle Vinyl Deck Planter. Simply set the planter on a guardrail of your deck or patio. The grooved middle straddles the rail, keeping it firmly in place. The Apollo Deck Planter comes in a variety of sizes and colors to complement your existing furniture or deck color. The 2x4 planter's groove fits snugly on a 2x4-inch rail and the 2x6 planter's groove fits snugly on a 2x6-inch rail. Both are 25 inches in length.