This Amazon Deal Gets You a Set of Bala Bangles Alternatives for $16 The weighted bracelets fit easily on your wrists or ankles and are a great way to tone and strengthen from the comforts of home ...

The advantages of such an adjustable and detachable elastic strap are so obvious that they need no explanation. Twain doesn't even feel the need to explain the utility behind his invention.

Q. I recently saw someone swimming with an elastic band around their ankles. What gives? A. Swimmers and triathletes are always looking for that extra edge to improve their performance and times.