This is a Pair of Front Wheel Axles for Many Tamiya vehicles.
The wheels attach to these axles.

FEATURES: Polished steel construction

INCLUDES: Two front pin-type axles

REQUIRES: Installation into vehicle.

SPECS: Total length: 35.4mm (1.39")
Shaft length: 26mm (1.03")
Thread length: 11mm (0.43")
Thread size: 4mm
Cup diameter: 10mm (0.40")

COMMENTS: These axles work on the following Tamiya vehicles: TA04, TA04 Pro,
TL01, FF02, WR02 vehicles, TG10, TB01 (cannot be used with 53430).