Viper SX propeller kit

Re placement SX propeller kit. Can be red or black it depends on what is in stock. Contains left and right rotational propellers, shaft coupling, grub screws and heat shrink cover.
Fitting please make sure that one of the inwardly grub screws sits on the flat of the propeller shaft. Please make sure you fit the rotational propellers to the correct motor, check on the bench before using on the lake you should feel a draught from both propellers when moving the joystick forward.