PRICE IS PER PAIR (quantity of 1 in cart = 2 spacers)
 
Introducting our "Anti-Fatigue" hub-centric slip-on wheel spacers for 5x120 BMW vehicles with 72.56mm diameter wheel hubs.
 
Available in 5mm, 12mm, 15mm, and 20mm thicknesses.
 
WHY ANTI-FATIGUE? 
Never worry about wheel center-bore chamfer interference due to manufacturing differences of wheel brands. Interference at the center can stress wheel studs significantly.
The mating surfaces of the spacers ensures the that the center of the wheel stud clamping pressure is outside the wheel bolt circle - i.e.- increases friction leverage to resist shear loads (braking, engine torque, corner weight, etc.) from being imparted onto the wheel studs (BAD!). 
Hub-centric for OEM wheel alignment with the rotation axis of the wheel hub/bearing (except 5mm which is thin enough to keep the wheel hub hub-centric feature)
 
OTHER FEATURES:
6061-T651 Aluminum Alloy
Mating surfaces held to 0.001in (0.025mm) or less parallelism and flatness
Pry notches along the OD on both sides for easy removal from hub or wheel
Lightweight design
Type II Black Anodized finish to prevent aluminum oxidation (white powdery build-up)