Using these core training wheels is easy. Just place them on a flat, stable surface. Get into a push - up position with your hands on the wheels. As you move, the wheels will make your core muscles work to keep you balanced. For different workouts, try changing your hand position or the speed of your movements. When using the wheels, make sure the surface is clean and dry to prevent slipping. Don't overdo it; start with a few reps and gradually increase as your strength improves. After each use, wipe the wheels with a clean cloth. Store them in a cool, dry place to keep them in good condition.