Using the toy is easy. First, make sure you have 2 AAA batteries installed. Then, flip the switch on top of the engine, and watch it race down the Thomas & Friends track (remember, it's not compatible with wood tracks). You can connect the engine to other Thomas & Friends trains, vehicles, cargo cars or tenders using the plastic connectors. When your child is done playing, turn off the switch to save battery life. Keep the toy away from water and rough play to prevent damage. If the engine stops working, check the batteries to see if they need to be replaced. Enjoy hours of fun with this great toy!