How to use: Simply push the die - cast toy trains and vehicles along. You can use them on a flat surface or on a Thomas & Friends track (if you have one). Create different stories and adventures with the various characters. Attention: The track sets are sold separately, so you may need to purchase them separately if you want to use the toys on the track. Availability of track sets might change. Maintenance: Keep the toys clean by using a soft, dry cloth. Avoid exposing them to harsh chemicals or rough play that could damage the paint or the structure. These toys are for kids aged 3 and up, so make sure younger kids don't play with them to avoid choking hazards.