Luggage cart - recommendations?

[Arctic Fox]

Mrs Fox wants a collapsible set of "wheels with handle" that she can use to move a box through the airport. Weight capacity 60lbs. Must collapse to within carry-on dimensions.

Any recommendations?

Thank you

[Ben Franklin]

Mrs Fox wants a collapsible set of "wheels with handle" that she can use to move a box through the airport. Weight capacity 60lbs. Must collapse to within carry-on dimensions.

Any recommendations?

Thank you
I have one that collapses down to 25" Magna Cart at welcomproducts.com - spelled correctly as there is no e in welcomproducts.