Jyze's photostream

Jyze (rhymes with "size") harnesses centrifugal force to create resistance in a lightweight design that can generate 3-30 pounds of force. Its simple winding action makes Jyze fun to use in a single-self-contained product with a total weight of one pound. Jyze's isocentric contractions improve strength, mobility, and stability of hard to work upper body muscles.
In a review of calorie-burning products, Prevention Magazine advisor Wayne Westcott gave Jyze highest marks. He wrote, “Try it if you love multitasking… Average calorie burn was boosted by 32%.”