4th Wheel Attachment For XSTO Stair Climber

This 4th Wheel Attachment is only Compatible With XSTO Stair Climbers. It used for moving heavy cargo by powered stair climber on flat surface in an easy way.

The compitable models are as follows:

1. ZW4170DC

2. ZW7170E

3. ZW7170G

4. ZW7200G

5. ZW7250GC

6. ZW7210GC