This is the Castle Creations 14T MOD-1.5 Pinion Gear. FEATURES: Hardened steel construction stands up to the torque of high-output brushless motors used in 1/5 scale conversions Fits brushless motors with 8mm shafts Number of teeth stamped on gear for easy identification One year limited warranty through Castle Creations beginning at date of purchase INCLUDES: Castle Creations 14T MOD-1.5 Pinion Gear