ST Wheel Spacers are designed to improve handling and the looks of the car. When installed they widen the stance of the car giving it a lower centre of gravity and more grip. ST Spacers feature a central hole on the hub of the wheel with a centering collar allowing for a perfect fit. Each wheel will sit wider giving a more sporty look. ST Spacers are made from anodized aluminum, making them both strong and light. The spacers are mounted between hub and alloy wheel. Different Systems are available to suit applications:A1- Bolt on for vehicles with wheel bolts, spacer attaches to hub with included bolts then wheel is mounted to spacer with original bolts.A2- Bolt on for vehicles with threaded studs, spacer attaches to hub with included nuts then wheel is mounted to spacer using original nuts.D1- Through hole system with bolt holes and double centering, spacer is centered to the hub an additional centering collar on the spacer ensures optimal fit.D2- Through hole system with bolt holes an