Feature: 1. High Performance: High performance, can effectively improve the vehicle's endurance mileage, effectively avoid the damage of large current discharge to the battery.2. Intelligent Discriminant Assist: Intelligent discriminant assist according to the speed of foot crutch, pedal up in the process of cycling more lightweight and more electricity saving.3. Manufacturing Material: Made of high quality ABS material, it is strong and durable, which undoubtedly extends its service life effectively.4. Diverse Features: Red positive pole, yellow negative pole, blue signal line. 12 magnets design, lightweight, fine workmanship and compact size.5. Simple Operation: Simple to operate, easy to use, easy to install and disassemble. Without any difficult requirements even though you use it for the first time.Specification: Item Type: Electric Bicycle Assist SensorWeight: Approx.56g / 2.0ozLine Color Definition: Red Positive Pole, Yellow Negative Pole, Blue Signal LineMaterial: ABSPackage List: 1 x Pedal Assist Sensor1 x Line