Tamiya Grade Up Parts Series TAMIYA 4WD MINI TUNE UP PARTS Aluminum Roller Set 13mm 15437, 2-stage 15398 These are processed genuine Tamiya products. 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 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. We will offer a discount for bulk purchases. These are personally made products utilizing my work experience. We ask for your understanding. The item has been opened once, and only the product has been taken out and repacked, so please consider it as a used item. Processing may cause minor scratches, but we handle them with the utmost care. Please understand that these are personally made products and we do not accept returns or claims. If you want custom one-off shaped processing rollers, please inquire.