This kit is used for the construction of a wooden barrier for your fence or patio; made of steel and sturdy, it stops the frame of the barrier from warping; it is weather resistant and requires no maintenance due to its anti-corrosion protection; easy to install, adapted to barrier frames up to 72" wide; it creates silent and soft openings to the left or right; includes the instructions and all the necessary hardware (screws, hinges, fixings), except the wood; baked powder coating finish (anti-corrosion); used with 2" x 4" or 2" x 3" structures.