For the Airdyne 3 & 4 you need to switch the left and right crank arm to be able to get these to line up. Left on the right side and right on the left. This is the left side pedal, left side crank arm, and a wedge pin.
This product would be ideal for individuals looking to improve their cardiovascular fitness and overall health through low-impact exercise while incorporating integration with a Schwinn Airdyne bike.