Features1Manufacturing Material: Made of high quality PC and ABS materials, long service life, wear resistance and good durability, time saving, labor saving and worry saving. 2Good Performance and Matching Effect: Products have undergone precise testing, so that accessories can achieve better matching effect, stable performance. 3Waterproof Connectors: Ensure maximum durability in all weather conditions, and high performance wires and waterproof connectors ensure a low failure rate in long term use. 4Universal on Both Sides: 30.5cm / 12.0in wire length, fitted with standard handlebars of 22.2mm / 8.7in diameter. 300X throttle shifter for bicycle lithium battery refit, common connector, universal on both sides. 5Anti Impact and Comfortable Shape: Anti impact, comfortable shape design for several thumb positions, it can be installed without removing the grip, and it can be installed quickly.SpecificationItem Type:300XThumbThrottleWeight: Approx.59g / 2.1ozMaterial: PC + ABSWaterproof Grade: IPX5Connector: Waterproof Connector (3Pin Female Head)Wire Length: Approx.30.5cm / 12.0inSuitable Handlebar Diameter: Approx.22.2mm / 0.9inPackage List1 x300XThumbThrottle