Tamiya Grade Up Parts Series TAMIYA 4WD MINI TUNE UP PARTS Aluminum Roller Set 13mm 15437, 2-stage 15398 19mm Plastic Ring 15426 These are genuine Tamiya products that have been processed. Parts originally included, such as bearings and screws other than the rollers, are included. If you have a desired color scheme, please feel free to ask. Processed using a high-precision Okuma machining center. Shipping will be via Yu-Packet Mini. Please note that we cannot be held responsible for accidents during shipping. Due to work commitments, shipping will be on weekdays. Multiple purchases are also possible. In that case, please inquire with the desired quantity, etc. We will sell at a discount for bulk purchases. These are personally made items utilizing my work experience. We ask for your understanding. Since the item has been opened once and only the product has been taken out and repacked, please consider it as a used item. Processing may cause fine scratches, but we handle them with the utmost care. Please understand that these are personal creations. If you want custom one-off shaped processed rollers, please inquire.