This is about Milwaukee 150 lb. vertical and 300 lb. horizontal Capacity Folding Convertible hand Truck. It can ben used both vertically and horizontally.
We purchased this dolly/hand truck 24 years ago and it's easy to use and smooth to push around. It folds up compact, neatly, compact for easy storage.
Home Depot: https://thd.co/3wpss3B
Hope you enjoy!