BIG is better

Reduced contact area with chassis also means better roll characteristics

Bearing Type:Top Ball Bearing

Method Race Wheels

and membranous wing heat abstractor also help it to play better on the battlefield as well as protect its body from enemy attacks

Robotime - Scale Model Vehicles; Prime Steam Express Tools Work/Display Stands BIG is betterRobotime ROKR Prime Steam Express MC501 is a 1: 80 scale model of a steam train in the 1860s. Realistic details like a steam whistle, shaft wheels, and a detachable tender, all make it an exquisite decoration for your home. This 3D wooden ROKR puzzle will be a perfect gift for your boyfriends or sons. Be prepared for the WOW moment when they receive it! *Due to customs policy, wax, glue, or battery may not be included in the package. Assembled Size: