Assortment of Ultra Thin 1.20 mm Spring Bars consists of 60 pieces Swiss made nickel plated ultrathin spring bars with a body diameter 1.20 mm from 6 to 22 mm in length. Set includes numbers 67-46000-06, 08, 10, 12, 14, 15, 16, 17, 18, 19, 20, and 22 mm. Refills are available