With unbearable summer heat and hazardous air quality from wildfires, you may be trying to limit your time outdoors this summer. Of course, if you’re looking to stay active or be more intentional about movement, you may wonder what you can do while staying near your AC and air purifier. Deemed the “best $100 dollars I’ve spent on my health” and an “easy and fun way to strengthen your whole body,” reviewers are loving this ultra-compact home rowing machine as a solution for moving and grooving safely indoors. Weighing just over 22 pounds, it folds up, stows away neatly, and is sure to move those muscles smoothly during a low-impact exercise.

This is what one user says is a “good low-impact activity to build strength” — which means it’s a classified form of movement that’s easier on the joints.

Per the American Sport and Fitness Association, “low-impact exercise” means movements that don’t have forceful landings or cause “shock absorption” in your joints — like running and jumping do. Generally, these movements include having one foot on the ground at all times, making them a great option for older folks and people with mobility limitations, according to the National Library of Medicine.