Tamiya Grade-Up Parts Series TAMIYA 4WD MINI TUNE UP PARTS Aluminum Roller Set 19mm Aluminum Roller 15464 2-Stage Aluminum Roller 15398 These are genuine Tamiya products that have been modified. Parts originally included, such as bearings and screws, are included, excluding the rollers themselves. If you have a desired color scheme, please feel free to ask. The plastic rings can also be dyed. These were 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. In that case, please inquire about the desired quantity, etc. We will offer a discount for bulk purchases. These are individually made products, 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 repacked. Fine scratches may occur during processing, but we handle them with the utmost care. Please understand that these are individually made products and we do not accept returns or claims. If you would like custom-shaped rollers, please inquire.