• Characters 'Billy' and 'Ruby': Billy is a yellow Bulldozer who is in charge of construction site. He is the leader of the construction crew and he is good at juggling.Ruby is a street sweeper. Although he is diligent, he is tactless.In fact, he was paranoid about his cleaning beyond his sense of responsibility.
• Characters 'Speed', and 'Chris': Speed is a red car who likes to go really fast, and is modeled on a Porsche Targa4S. Speed has a bit of crush on Heart, but she is oblivious of it. He is best friend with Shine. Chris is a reliable, cheerful, and talkative concrete mixer. Also, he is playful and humorous. In addition to it, he is one of the Heavy vehicles who have a strong sense of responsibility for their jobs.
• Educational effects and portability: 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.
• 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.
• They can learn about vehicles,the means of transportation and transport system including jobs.