The Video Pro-M3 Dolly from Sunpak is designed for use with the Sunpak Video Pro-M3 tripod, but it's also compatible with many other brands of medium and heavy-duty tripods. It features oversized casters for working on uneven surfaces, no-roll kick-outs, leg extension markings, and user-adjustable flip-lock leg locks. It folds down to 17" long, with a built-in carry handle design, and it weighs just 3 lb.
Supports medium and heavy duty photo and video tripods
Leg extension markings
Oversize casters for movement on practically any terrain