The motor covers for the Flex and X1 Max come as 4 pieces. Two motor covers, and two belt guards. Separating the guards in this way allows for an easier and faster belt change since you only need to remove the motor guards with two screws each to change a belt.
Motor protective cover set comes with
-2 motor guards
-2 belt guards
-one set of screws ( same screws as the stock Flex uses)
-one torque screw wrench for the accompanying hardware.