Feature: 1. Made of high quality rubber material, which can effectively prevent the infiltration of water, strong and durable. 2. The LCD screen can clearly display the power and status of the electric lock. High quality LED indicator light, it is easy to see the light distribution at night. 3. The handlebar is ergonomically designed for slip resistance and comfortable grip, and the speed can be easily adjusted during use. 4. Suitable for electric bicycles and electric scooters with handlebar diameter of about 22mm / 0.9in. 5. It is easy to install and use, and meanwhile, it is enough for most purposes. Specification: Item Type: Electric Bike Throttle Grip Weight: Approx.320g / 11.3oz Material: Rubber Applicable Electric Bike Handle: 22mm / 0.9in Package List: 1Pair x Throttle Grip 2 x Key How to use: The tail black throttle grip is the negative pole ground, the green throttle grip is the signal output, and the red throttle grip is the 5V positive pole.