Notice: This toy is suitable for over 12 years old. Features: 100% brand new and high quality. Self assembly required. Mini Size, convenient to store and carry It can improve children's abilities of creativity and practice It also train the patient of children when they assemble the toy Children could enjoy the fun when play with the toy It is not finished blocks Scientific experiment toys, exercise children's practical ability. DIY small toys, cultivate innovative ability. Cultivate scientific knowledge. Select high-quality green environmental wood, safe and environmental friendly. Color: Wood Material: Wooden Theme: Transportation Size: about.28*8cm Package Contents:1Set DIY Science Toy Notes: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.