ECS Tuning 3mm wheel spacer; plated steel. Wheel spacers offset wheels to improve vehicle appearance and handling. These flat discs with center holes and wheel bolt holes fit between wheels and hubs to push the wheels outward. Wheel spacers from ECS Tuning come in thicknesses from 2-20mm, to widen track, improve cornering, and provide extra room for altered suspension and brake components. Please Note: Wheel spacers 2mm to 8mm do not have raised centering hubs. Please be sure your wheel hub centering ring protrudes far enough through the thinner spacers to center the rim.