Fit for ATVs with thumb throttles; will not work with twist grip throttles. Easy to  install. Specification: Color: Black. Power: 12w-24w (Adjustable). Red Line: DC+12 cathodes. Black Line: DC -12 anode. Length: 128mm. Fitment: Fit for ATV’s with thumb throttles; will not work with twist grip throttles. Installation Instruction: 1. Tear Down the Primitive Handlebar and Load the Electric One. 2.  As for Electric Power Line,Red Line Connect the Positive,Black Line,the Negative         Cant meet, Otherwise Temperature Cannot Adjust. 3. Before Opening and Closing,Push it to Increase the Temperature.Retreat is to Reduce the Temperature,Back End to off. Note: 1. When loading the left handlebar to the motorcycle ,qualify position and perpendicular to the ground. 2. Balance ,please take it as well as balancing the installing position,fasten silk dont  squeeze his hand .as the balance of iron can not adjust the installing position, in the balance of iron can not adjust the installing position ,in the banlance with the iron hand between the washers of and excessive press hand ,will cause damage the abnormal. Package Included: 1 X Electric Heated Grips Handlebar