The student attaches the wheel to the wheel unit.
text: Is there something on the outside?
text: Either outside or inside.
text: Cool.
text: Yeah.
text: Now that the wheels are attached, the back wheels, there is that black lever that you pulled in you need to pull that back up to lock the wheels in place. So they wont fall out.
text: Oh.
text: On the...
text: Pull these guys up.
text: The little guys.
text: The little guys.