Feature: 540 3-Slot Brushed Waterproof Motor Rebuildable with an accessible commutator and brushes and springs High strength magnets for unmatched brush-motor performance Specifically designed for R/C vehicles that require precise movement control Excellent torque and long-run times.Direct-Solder Wiring Tabs for flexible soldering . Dual- Design Specifications: Motors: 80T Use voltage: 7.4V Ratio Reducer Planetary Gearbox Specifications: Reduction Ratio: 1: 4.2 for TRX4 1/10 Material: Metal colour: As shown Package Contents: 1 x 540 Motor 1 x motor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.