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