Panacea 89057 Adjustable Aluminum Deck Mount Bracket Add a flower box to your deck easily, these brackets easily mount to a deck rail Adjusts to accommodate a large range of box sizes Powder-coated for added durability Adjustable aluminum deck mount bracket Simply adjust the mounting bracket to the appropriate size for your deck rail, and use the included screws to secure it in place The black color enhances any surrounding, and the aluminum construction will last for several seasons Display your flower boxes in new places with help from these adjustable aluminum deck mount brackets Measures 12-inch length by 0.75-inch width by 3.375-inch height