First of all, this was SUPER easy to put together. Mine came fully assembled in the box aside from the wheels. The first picture I attached is of the instructions and the tools you need to put this together. You don't need any of your own tools! It comes with a phillips screwdriver and the white plastic item is to tighten the nuts on the wheels. The directions were very simple. You take the washer and nut off the wheels, you place the wheel on, you put the washer and nut back and tighten. Then you pop in the round nut covers. That's it!! TIP: I found it much easier to turn the car upside down while installing the wheels. I did this on a rug just to make sure I didn't scratch any of the car. Next, you unscrew the seat. There is only one screw. Once you lift the seat out you will see the battery compartment. My second picture is what the battery compartment looks like. The battery is held in place with velcro. You loosen the velcro strip and slide out the battery. There will also be a battery charger in the seat. It comes in a box. You simply attach the battery to the charger and plug it in. There's a red indicator light that comes on so that you know it is charging. It is not hard to determine how to plug the battery in. It can only be plugged in one way. It took me a total of 15 minutes to put this car together by myself. My husband was not needed! That time includes the time it took me to read all the instructions. Seeing this car in a picture does not do it justice! It is sooo much cuter in person. A child seeing this car for the first time will DEFINITELY know it's from Frozen! The stickers all around the car are absolutely adorable. The car headlights and tail lights light up! Even the little side mirrors have a little snowflake on the back of them. SUPER CUTE!!! If you have a child that loves Frozen, this will be a huge hit for them!!