Using the Yvolution Twista Skates is easy. First, make sure the skates fit your child's feet properly, as they come in sizes from 7J to 11J. If your child is just starting out, leave them in the learner skate mode. When your little one is more confident, press the button to switch to inline skate mode - no tools required. Remember, the maximum user weight is 20kg, so don't let anyone heavier use them. These skates are suitable for kids aged 2 and up. For maintenance, after each use, wipe the skates with a clean, dry cloth. Store them in a cool, dry place away from direct sunlight. Check the wheels regularly for any signs of wear and tear. If you notice any issues, it might be time to replace the parts. Have a great skating time!