Pillow ball bushing provides excellent driver feedback, precise control and solid suspension feel. Inner bushing is accurately made of both high molecule plastic tube and specific metal alloy. High durability and reliability. Outer bushing is combined by TPV material anti-dust boot, 100% resistant from dust, water and oil, extend the life of the bushing ‧Excellent driver feedback ‧Increase steering response ‧High quality spherical joint bearing ‧Solid response ‧Get a control and stability ‧OEM direct replacement  Note: Pillow Ball Equipped Offset Function / Caster +1 degree 2 PCS/SET  Fits: Toyota Supra 5th J29/A90 2019-present BMW Z4 G29 2019-present