Character 'Tayo' and 'Rogi': Tayo, who just starts the bus service is freshman, as a qualified city bus. He is very curious and cheerful. He grows up with his bus and car friends together as a Seoul city bus everyday. Rogi is best friend with Tayo and the two spend plenty of time together playing games and occasionally fighting. Rogi seems to be mischievous and silly. He enjoys sleeping in and is less mature than some of the other buses. Talking clock with 10 saying, Tayo theme, and 2 sound effects: Whenever it's 12 o'clock, the saying, "The little bus Tayo goes!" and Tayo theme come out. And, there are various sayings in Korean, like "The mini car starts to go one by one."," I'm so afraid.", "Let's cheer up for today!", "Go enjoy fully! vroom, vroom", "To the safety road carefully.", "Go with green light", "Stop at the red light." and "Beep, beep." Their size to fit like a glove to children's hands and portable anywhere. And, it grows children's communication skills,verbal interaction, and imagination by playing role play. Also,playing toys can help develop sensory skills and they can create their own personal and unique play experiences. In addition, it builds up kid's fine motor skills by controlling their powers, too. The friction gears of Rogi and Tayo: Draw backward while you are holding and pressing them. If you release them, they moves forward. Therefore, they don't need any batteries. Caution) After playing, it should be kept out of reach of small children whose age is under the age on the package. It contains small parts. Therefore, don't let kids put them into their mouths. Also, don't place them closely near the fire. And, explain to them how to play and let them play under the guardian's control.