Showerwall Bright Silver End Trim Bright Silver 2450mm ET1. This Fixing Bracket from Showerwall is designed to fit at the end of a run of panels. The "U" is a flat trim that fits flush to 3 sides of the panel it holds, the bracket holds the wall panel in place (with adhesive). The end cap profile measures 2450mm in height, 17mm in width and 10mm deep but can be cut to size to fit your exact requirements.