The drive shaft (joints) / spherical joints of a car play the role of a driver during the movement of the car. The smoothness of its part is important for the movement and control of the car. One of the components of the drive shaft (joints)/ball joints is a dust boot, inside which a special graphite lubricant is placed. The dust boot protects the ball joint lubricant from dust, water and unwanted dirt. FEST drive shafts (joints)/ball joints are made of the highest quality materials, with the highest precision and have undergone strict control in accordance with OEM standards.