This is a right hand brake lever with the ability to lock the brake on which acts similar to a parking brake on your car. You may have this brake lever on your Chinese made, larger ATV from China. Usually you find it on machines that are 300cc or larger in size.
The lever from the pivot point where the bolt is to the end is about 7 1/2 inches or 19 cm. The over all length of this lever is 9 inches (23cm) not including the nut to adjust the cable. It also has a small safety micro switch that can be used both to active the brake light and/or make it so your beast will not start unless the brake is on.