Leofoto Car Window Stabilizer Black. The window stabilizer has a 3/8th mounting stud and features two arms to secure it in place. The arms are made of aluminum covered with leather with rubber end caps to protect your vehicle. Specifications for Leofoto WN-03 Car Window Stabilizer: Manufacturer: Leofoto Color: Black Fabric/Material: Aluminum Features of Leofoto WN-03 Car Window Stabilizer Aluminum CNC Machining Package Contents: Leofoto WN-03 Car Window Stabilizer Leofoto WN-03: WN-03 Car Window Stabilizer Black