Tamiya Grade-Up Parts Series TAMIYA 4WD MINI TUNE UP PARTS Aluminum Roller Set Sold as a set, priced lower than usual. 13mm 15437 19mm 15464 2-Stage 15398 These are genuine Tamiya products that have been modified. Parts originally included, such as bearings and screws, other than the rollers, are included. If you have a desired color scheme, feel free to ask. Processed using a high-precision Okuma machining center. Shipping will be via Yu-Packet Mini. Please note that we are not responsible for any accidents during shipping. Due to work commitments, shipping will be on weekdays. Multiple purchases are also possible. Please inquire with your desired quantity, etc., via the question function. We offer discounts for bulk purchases. These are personally made items, utilizing my experience from work. We appreciate your understanding. Please consider these as used items, as they have been opened once to remove the items and then repackaged. Processing may result in minor scratches, but we handle them with the utmost care. Please understand that these are personal creations and are sold as-is, with no returns. If you desire custom, one-off shaped processed rollers, please inquire via the question function.