Tamiya 53539 Aluminum Spacer Set 5.5mm FEATURES: Blue and silver anodized aluminum construction.;INCLUDES: Four 0.5mm thick silver spacers. Four 1.5mm thick silver spacers. Four 2.5mm thick silver spacers Four 1mm thick bluer spacers Four 2mm thick blue spacers. Four 3mm thick blue spacers.;REQUIRES: Assembly on vehicle.