These tractor truck tires are made of a hard compound material which is well-suited to use on Tamiya 1/14 scale tractor trucks. Using these tires on the front of the trailer combats over-steer and rear sliding to provide a more stable driving experience. Fitting them to the trailer means smoother cornering to lower traction. • Compatible with Item 56335 Mercedes-Benz Actros 1851 GigaSpace trailer head. • Can be used with single-tire trailers.