Trailer Jack Auto Dolly Attachment ramps What is this bin used

What is this bin used for

Confirm model or manufacturer part number 649-29637-1

It has 10 in wheels for maneuvering over rough surfaces and a brake to help prevent strap overrun

Hardwood on Steel Deck

Inlet Section Thread: 1/4" NPSF (f)

Trailer Jack Auto Dolly Attachment ramps What is this bin usedProduct Overview The Trailer Jack Dolly provides a "capture" for your trailer jack or trailer jack wheel. With a pair of Auto Dollies under each trailer wheel and one with the Trailer Jack Attachment under the jack, your trailer (and load) can now be moved in any direction (even sideways). Preserve precious floor space by storing it closer to the wall than you could hope to safely & conveniently get it by jockeying it around on your hitch! *Auto dolly