As if a regular hub isnt tough enough on the fingers. We thought, what can be even harder to lift? Well why not try a ring? ..And well here we are.
Perfect for testing and developing finger strength, we found the ring hub is actually very tough on the thumbs too. It's a great way to grow pinch grip strength.
At just 12mm diameter, the rings are very difficult to get a solid grasp on, which is part of the charm of course.