These are Hard Gear Differential Cups for 1/10 Tamiya Touring Cars.

FEATURES: Steel Construction

INCLUDES: One Standard Cup
One Cup with Shaft

REQUIRES: Nothing

SPECS: Length: 21.75 mm (0.856") with shaft 38.3 mm (1.508")
Inner Diameter: 6.15 mm (0.242")
Outer Diameter: 9.9 mm (0.390")

COMMENTS: For Cars: Touring Cars, M-Chassis Cars, TL01B Chassis Cars,
TG10-Mk1 Chassis Cars, Wild Dagger, Pajero, Wrangler, Manta Ray,
Dirt Thrasher.