Instruction: Specifically designed for 500 class helicopters, this swashplate leveler allows for precise swashplate level adjustment, improving helicopter hover stability and flight performance. Tailored specifically for Align swashplate designs, utilizing CNC alloy metal for pleasing aesthetic and functionality. Use for T-REX 500 all calss machine. Specification: Swashplate unit corrector × 1 M3 Set screw × 1(3x3mm)