This is a good product and does what it says when you use it as a trainer. When using it as a posture reminder, I found that my lower back (middle and lower back) hurt and I became more aware of these spots. The exercises are good for strengthening weak areas and great for swinging your arms. Hopefully the back will get stronger over time, but you'll have to work hard for that. I want to try it in the garden. I'm 110 years old, 5'4" and the size Small was just right. In general I like it and I share this concept with my friends.
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