[Useful parts for improving machine performance and setting]
Plastic spacers that are indispensable for adjusting the height of rollers and brakes.
Lighter than aluminum and made of low-friction resin, the resistance is small even if it contacts the course, minimizing the decrease in speed.
Set 4 each of 5 types of length from 1.5 to 12 mm to support delicate height adjustment.
A bright fluorescent yellow accents the machine.
[Basic specifications] Made of low-friction resin. Set of 4 each of 5 types of length
[Available machines] Mini 4WD PRO, each Mini 4WD car
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