The Neatest Way to Fill Holes.....Is with this universal set of copper plates. Temporarily clamp over the hole or void, and weld. The weld-deposited metal will not stick to the copper, while the copper absorbs the heat. Soft annealed triangle can be bent to fit body contours. Use flat rectangles on flat flanges, seams, and more. Triangle tapers down from 2-1/2in. wide over it's 7-1/4in. length, rectangle measures 1-5/16in. wide by 6-1/8in. long. Kit includes one triangle and two rectangles.