Product Review

Piano balance rail punchings complete kit. Made of paper and cardboard, this kit contains 10 different size punchings. There are approximately 500 punchings of each size, and 5,000 total punchings include. The punchings are necessary for leveling your piano keys. The included sizes are: .003", .005", .007", .010", .012", .015", .020", .025", .030", .045".