| Cylinder | Represents a cylinder for iWheel control. |
| CylinderCollection | Represents the collection of Cylinder class objects. |
| CylinderException | Represents an exception which is thrown by certain operations with Cylinder class. |
| CylindersChangedEventArgs | Contains arguments for OnChanged(CylinderChangeType) method. |
| CylinderSpinningCompleteEventArgs | Represents arguments for SpinningComplete. |
| Distance | Represents distance of one object from another. Provides units of measure. |
| ImageCylinder | Represents a Cylinder whose items are items of ImageList. |
| IndexChangedEventArgs | Contains arguments for SelectedIndexChanged event. |
| iWheel | Represents a Bee Mobile iWheel control similar to iPhone DateTimePicker control. |
| Margins | Specifies the size of margins of iWheel's Cylinders from the borders of iWheel. |
| SpinInfo | Represents information for BeginSpinning(ListSpinInfo) method about how should the cylinders be spun. |
| SpinInfoException | Represents an exception which is thrown by BeginSpinning(ListSpinInfo) method. |
| TextCylinder | Represents a Cylinder whose items are made of String objects. |
| TouchScrollSettings | Represents the settings for Touch & Scroll functionality. |
| CylinderCollectionCylindersChangedEventHandler | Delegate for CylindersChanged event. |
| IndexChangedEventHandler | A delegate for an event which is fired if an index of an item changes. |
| SpinningCompleteEventHandler | Delegate for SpinningComplete. |
| BackColorFillType | Specifies how the background of iWheel should be painted. |
| CylinderChangeType | Represents the types of changes which take place in a Cylinder. |
| DistanceUnits | Specifies how distance is measured. |
| ImageAlignment | Used to align an image within its drawing rectangle. |