Sproing Fitness: The Shock-Absorbing Treadmill All 5 Sharks Rejected — Yet Still Thrived
Sproing Fitness invented a treadmill with a soft, cushioned surface that mimics the feel of running on sand, cutting joint impact by 50-66% compared with conventional running. Despite being turned down by all five Sharks on Season 10 of Shark Tank, the company has since grown its valuation to roughly $30 million.
Think & Rich