This is a sorting machine for screws, washers, and nuts for Mini 4WD cars. It can sort them all together. The parts that can be sorted are as follows: ① 2mm diameter screws ② Large washers ③ Bearing spacers ④ 2mm nuts ⑤ Spring washers ⑥ Small washers *The numbers engraved on the sorting trays indicate the parts that can be sorted. Put everything together in the top tray, place it on a flat surface, and gently shake it left and right for about 10 to 15 seconds. The sorting trays are engraved with numbers. Always make sure the smallest number is on top. Please note that depending on the condition of the parts, they may not be sorted. It will be shipped via Yu-Packet Post Mini.