This is a Replacement Flywheel Nut from Traxxas.
FEATURES:
Metal construction.
Used on the Traxxas TRX 2.5. engine
INCLUDES: (1) Flywheel Nut
Fits: 1/10 Nitro Jato 3.3 / Nitro Slash / Revo / T-Maxx / Slayer Pro 4x4 / Nitro Rustler / T-Maxx Classic