Easy Fit External Bay Corner 135° 3mtrThe easyfit 135 degree external corner trim is a game changer. Not only does it speed up the installation, it gives the most aesthetically pleasing look to the corner of your building you can achieve. It protects the edges of the planks and allows for any movement in the planks. Using other folded corners where the boards are butted up to the edge of the corner shows gapping in the boards and any imperfections on the edges of the boards after cutting.