This Aluminum Chassis Brace Spacer Set adds strength and style to your ARRMA vehicleFeatures:Precision machined from high-quality aluminum - Anodised ARRMA red for awesome looks - Direct replacement for molded composite parts SPECIFICATIONS: Short Spacer: ID: 4.1mm, OD: 12mm, Length: 9.5mm Long Spacer: ID: 4.1mm, OD: 12mm, Length: 13.5mmIncludes:1 x Aluminum Chassis Brace Spacer 13.5mm 1 x Aluminum Chassis Brace Spacer 9.5mm