This is an experimental set that allows you to learn about air while playing. All the experimental equipment shown in the second photo is included. Operation has been confirmed. The car that runs on air is fun, and my daughter played with it repeatedly. Although it's a supplementary item for second graders, even younger children can enjoy it if they are with a parent. Some of the paper supplements are missing or damaged. This is also recommended for those who have lost some of the equipment. To keep shipping costs as low as possible, the experiment book will be folded in half for shipping, so please be aware of this. - Set contents: 3 toy devices (blue, transparent, and white parts) - Accessories: Box containing stickers and cards - Colors: Blue, transparent, white, orange, yellow - Function: Educational toy for learning while playing