Our kids were too big for this so it's barely used, but it has been in storage for a while. Includes tools and the short axle to convert into a 2-wheeler.

From the website:

This amazing bike starts off as a three-wheeled trike which will get your 12 to 18-month toddler onto their first set of wheels. When you feel they are ready, easily convert it to a two-wheel balance bike at just the perfect height.