These heavy-duty front upper suspension arms have been designed ARRMA tough so you can send it high with confidence. Features: Heavy-Duty design with material strategically placed to increase crash resilience. Constructed from tough composite material for increased crash resistance and long-lasting durability. Precision molded hinge pin holes for smooth slop-free suspension action. 120mm between inner hinge pin center and outer end. Includes 1mm and 2mm Castor adjustment clips for a range of tuning options. Provided in a pair. Includes: Left Front Upper Suspension Arm Right Front Upper Suspension Arm Four 1mm Castor Adjustment Clip Two 2mm Castor Adjustment Clip