After six years in business, Rowheels, a Fitchburg, WI-based maker of special wheels for wheelchairs, is expanding its team and products.

The company sells wheels that allow people in wheelchairs to propel themselves forward by pulling the hand rims—as if rowing a boat—rather than pushing them. This alternative motion is more effective at strengthening back and shoulder muscles, while the design improves a chair’s responsiveness and braking, says Rowheels co-founder Rimas Buinevicius. Read the full story here.