NSK (Nippon Seiko K.K.) Made-in-Japan High-Performance 520zz Ball Bearings 1 Lot (100 pieces) Specs MC2 Outer Diameter: 5.0mm Inner Diameter: 2.0mm Thickness: 2.5mm This is a high-performance product with the least play and rolling resistance among the currently available 520 bearings. Since they are not degreased, please perform basic maintenance such as cleaning with a cleaner and lubrication before use. In-stock items are stored in a humidity-controlled storage according to the manufacturer's storage standards (see images 2 and 3). If you would like a quantity other than 100 pieces, please feel free to inquire in the comments section, and we will create a dedicated listing for you. 【Sales Price by Quantity】 10 pieces: ¥1333 20 pieces: ¥2444 30 pieces: ¥3555 40 pieces: ¥4666 50 pieces: ¥5777 100 pieces: ¥11111 Discounts are available for multiple purchases of other products or the same product, so please inquire in the comments section. Search Keywords Charger Discharger Carbon Pera Tire (Mini 4WD tire) Processing Flex (Mini 4WD modification) Anodizing Jig Mini 4WD