Using this strength set is easy. For the handgrip trainers, simply hold them in your hands and squeeze repeatedly. You can start with a few sets of 10 - 15 squeezes a day and gradually increase the number as your strength improves. When using the push - up bars, place them on a flat, stable surface and position your hands on them. Lower your body down slowly, making sure to keep your elbows close to your body. The exercise wheel should be used on a smooth floor. Kneel on the floor, hold the wheel with both hands, and slowly roll it forward, then back. Remember to keep your back straight during the whole process. As for maintenance, keep the set clean by wiping it with a dry cloth after each use. Store it in a dry place away from direct sunlight to prevent any damage. If you feel any pain or discomfort during the workout, stop immediately.