This will be a limited-edition version of the popular 19mm roller and its exterior plastic bands are offered in orange color. The 5-spoke rollers are made from lightweight, tough aluminum, and with integral ball bearings, they supply a smooth ride.
Rollers are employed in Mini 4WD devices to enable faster cornering speeds with just minimal rate loss. 19mm may be the biggest roller available, making many Mini 4WD machines as wide as legally allowed using formal Tamiya rules.