Trolleyboss now has an inexpensive but ultra strong option to move heavy plant Pots, Planters, Troughs and Boxes. Perfect For: Stack-n-Pots Products, the 1999 Australian Invention and concept of Stacking Plant Pots that has become so popular around the world. The Stack N Pots.  Original, Multi, Maxi and Midi Stackable Planting Kits. Also Suitable for all Stackable Planting containers Click on Tab below to view the Stack N Pots range. These extra strong Trolley’s are also often used to support other large Plant Pots, Troughs, Ceramic Urns, Clusters of Smaller Pots, Boxes or any suitable item requiring mobility.