If you’re going to focus on one exercise to get into better shape for 2017, a rowing machine works just about every muscle in your body, and you can own one for just $64 today, with free shipping from Amazon.

Obviously, this machine is about as barebones as they come, but you do get 12 levels of resistance, and it’ll track calories, time, and number of pulls, though it won’t translate that into a rowing distance. Reviewers seem about as impressed as could be reasonably expected for a machine this inexpensive, so if you’re on a budget and have the space, you won’t find a more affordable option.

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