Tried to order this a couple of years ago when I ordered the trays, but it was on backorder. I forgot about it and stacked the paper trays on the top of a storage cabinet which worked well until I needed more room, that's when I remembered the rolling base. My timing was great because the base was on sale. I have 20 trays stacked on the rolling base and it work great. Sturdy metal and smooth rollers make it easy to use. I think the bas is a MUST HAVE if you use the trays.
This is the greatest thing since sliced bread. I am so happy to get this. It is very sturdy and rolls very easy even with a very heavy load of paper trays on it. I was able to clear a lot of counter space for working space. I am getting ready to order one for my 8.5 paper, then I may order more trays for my other paper. This is one of the best items I have bought yet for my craft shop.
I found this base to be very sturdy and the wheels easy to roll even on carpet. Two of the wheels have locks which worked very well. I bought 30 lipless stackable trays and found the base to easily support them. I am going to be buying another base and 20 more lipless trays to finish putting all my paper in. I love that they don't take up much room.
I read the other reviews and I decided this base was exactly what I wanted; sturdy and durable. I was not disappointed. Tray is very sturdy and so far has worked out great!