RELIABLE QUALITY: This brushless controller is made of aluminium alloy, this brushless controller is sturdy and durable. CIRCUIT PROTECTION: The controller shell is made of aluminium alloy with groove design, which can protect the inner circuit due to good heat dissipation feature to avoid thermal overloading. SENSITIVE CONTROL: This item is a brushless motor controller, it can provide steady speeds and sensitive control of braking and direction changes. LONG SERVICE LIFE: The wires and interfaces are durable, and ensure low malfunction of long time use.The interfaces have instruction labels on them for your easy installation. WIDE APPLICATION: The Brushless DC Motor Kit suits for electric throttle, motorcycle, scooter, go karts, e-bike, atv, mini bikes, pocket bikes and electric dirt bikes.