Saitek CES432110002/06/1 Pro Flight Cessna Trim Wheel The trim wheel covers 9 full rotations making it extremely accurate Unique, 2 - position desk clamp keeps your trim wheel securely fixed no matter how extreme the flying conditions 9 Turns of revolution - Re-creates the genuine Cessna control movement Trim Wheel can be mounted either on top or in front of your desk USB 2.0