Only 3 of 4 Dollies were in box. Customer support is going to get back to me. Tried moving 2000lb cast steel surface plate- 2 Dollie's on one end, forklift on other. Even moving very slowly on a smooth surface the table legs started to slide off the follies. I cut some discs from some sheet rubber that I had and adhered them to the rotating tops of the dollies with spray adhesive. Now the table legs and follies track together. Update: VEVO customer service never solved the missing dollie problem. Communication is very difficult- language problem of some sort. I gave up after several weeks and returned the three Dollies to my local Whole Foods. A total waste of my time and shipping expense for the vendor.