Gravity latch to prevent accidental removal. Brackets will accommodate wooden rails up to 4 x 2"(100 x 50mm). Includes fixings. Galvanised for maximum weather protection. This product is made from galvanised steel, offering the highest specification of widely used weather resistance available. Come rain or shine, the Slip Rail Bracket is able to withstand both the outdoor environment and repeated use. It all adds up to a quality product which has the ability to offer you a long working life.