Instruct: Classify Amazon reviews into positive or negative sentiment
Query: THE COMPACT WONDER THAT DELIVERS

It's a small piece of equipment that kicks butt and gives your body a rigorous workout. I bought the 32 inch size since I am petite and have multiple injuries and knew it would be easier to handle. It has built up the muscles in my arms and neck so that I have much more strength and is compatible with my fybromyalgia and herniated discs. It is a great tool for physical therapy and I checked with several doctors who approved of its use. The product arrived promptly, was packaged properly and came with instructional video that was very helpful. I will eventually buy the next larger size as my challenge needs increase. Buy with confidence--it will not disappoint!