This is a set of bearings and shims. - 740zz bearings: 4 pieces - 0.1mm shims: 6 pieces - 0.3mm shims: 2 pieces - Suitable for 4mm handle shafts of Daiwa and Shimano reels. Perfect for those who need more bearings when replacing knobs or adding bearings. - Additional shims can be provided. Please inquire through the question section, and I will create a dedicated listing. ※ There may be extra shims! Due to their thinness, you may not notice that several are overlapping, resulting in a few extra. The extra shims are provided as a service, so please feel free to use them.