This tool is designed to work with a 1/8" scoreboard to help you create purrfect concertina spines with either a 1/4" or 3/8" gusset. You won't need to count out the measurements or waste time trying to read the tiny numbers on the scoreboard.
Contents: 1 x Acrylic Tool, 1 x Mylar Strip, 1 x Instruction Sheet.