This is the RK-42 Motor for SCX 1/32 Scale Slot Cars. FEATURES: This motor is for SCX 1/32 scale slot cars Carded plastic packaging INCLUDES: One RK-42 motor SPECS: Dimentions: 1-7/8" x 1" (47.62mm x 25.4mm) COMMENTS: Due to small parts that could cause a choking hazard please keep away from children 3 years of age and younger tlc 11/30/12