This priceless spacer set features spacers of 5 various thicknesses, enabling you to make pinpoint setup modifications to your Mini 4WD device. This version enables you to include a splash of color set alongside the standard silver set as seen in item 15473. These blue anodized aluminum parts may be used with rollers, back stays, braking system sets an such like! Measurements are defined by the following: (inner diameter x external diameter x size) 2.1mm x 4mm x 1.5mm Spacer x2 2.1mm x 4mm x 3mm Spacer x2 2.1mm x 4mm x 6mm Spacer x2 2.1mm x 4mm x 6.7mm Spacer x2 2.1mm x 4mm x 12mm Spacer x2