This assortment contains 40 special strong stainless steel spring bars. This assortment has been specially designed for the servicing of “Prestige” watch brand watches such as Rolex, Omega, etc. Assortment consists of 10 different bars, 4 pieces of each size. Set includes numbers 67-46050-20, 67-46051-13, 67-46052-13, 17, 19, 20, 67-46053-19, 67-46054-20, 67-46055-20 and 67-46056-20. Refills are available. Swiss quality.