Using the SmarTrike TR3 is easy. First, if you have a baby around 10 months old, use it as a stroller. You can steer it with one hand effortlessly. When your child grows a bit, you can transform it from a stroller to a trike in seconds by following the simple steps. You can choose to control the trike or let your child take the wheel with a press of a button. For assembly, no tools are needed. Just make a few clicks and it's ready. When it comes to maintenance, keep it clean by wiping it with a damp cloth. Check the shock absorbers regularly for any signs of wear. Make sure all the parts are tightly connected before each use. Always use it on flat and safe surfaces to ensure your child's safety. This tricycle is suitable for kids 10 months and older, so don't let younger kids use it.