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Use this tool to measure and set the proper angle of your playfield. This tool is especially useful for games without a built-in bubble level. Features a magnetic base and easily readable face. Accurate to 1/2 of a degree. Your game's manual should have the proper playfield angle information, if not, set it using the guide below.
Games made before 1990 are usually 6 degrees.
Games made after 1990 are usually 6.5 to 7 degrees.