4piece universal aluminum wheel spacer set designed to widen the track while preserving braking performance. The spacer thickness does not affect braking distance, helping to protect driving safety. Key features and benefits Brake performance maintained: spacer thickness is designed not to affect braking distance, supporting safe stopping. Universal compatibility: 4 spacers in 3 mm, 5 mm, 8 mm, and 10 mm thickness to choose from. Wide fitment range: fits 4x100, 4x114.3, 5x100, 5x108, 5x114.3, and 5x120 bolt patterns. Material and durability: made of aluminum for a balance of strength and light weight. Vehicle stability: can greatly improve the stability of the vehicle. Safety and handling: make sure the car is more flexible, stable and safe. Use scenarios Installing aftermarket wheels with one of the listed bolt patterns and selecting the spacer thickness to achieve proper fitment. Widening the track to enhance stability and handling on highways and in cornering. Replacing or upgrading wheels on vehicles that require spacers to maintain even spacing across all four wheels for balanced alignment.