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Title: Not very helpful.
Review: I reviewed the daVinci tool separately before I realized I could review them both together (whoops). The back roller for me is not that great. I lie on a short-pile rug to exercise my back. To use the roller, I have to take off my shirt, as it will slide out of position between my shirt and the rug- those rubber traction jobbies at each end are practically useless. It helps a little with soreness between my shoulder blades, but either of these devices is overpriced.
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