If you love the calorie-blast of jump-rope— and want to klutz-proof your workout, you'll fall hard for the ropeless JumpSnap. It's already roped in Hilary Swank and Bob Greene, Oprah's trainer. A computer provides the "snap" sound for rhythm, and tracks calories burnt —a cool 100 every five minutes. Snag it in pink to support breast cancer research.

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