High quality product. Made of aluminum. Light weight and durable. Special for electic bike and scooters. With electric motor shutdown (stop the motor when holding the lever) One pair of electric bike brake levers included. Installed on 2.2cm diameter handlebar Quick release mechanism. Super easy to install. 1. brake lever for Ebike (mid drive motor): 1. electric bicycle brake handle cut off sensor. Cuts power to the motor when the brake is pressed 2.Compatible with all Bafang MID Drives BBS01B BBS02B,BBSHD 3.Sealed waterproof connectors Colour: Black Material: metal + plastic Package Contents: 1 x pair Electric bike brake lever (left and right) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.