DescriptionThe item is a perfect educational toy for kids to balance and exercise to control their body. And it can also increase the vital capacity, through reasonable control to achieve the balance and perception of the concepts of energy! What a classic science toy.Features-Color:Random Color -Material:Wood -Size:14.00X4.00X1.20cm/5.50X1.57X0.47in -With bright colors and interesting design, it can let your kids have fun and be happy.-One of the classic toys for children, through mouth blowing exercises, children learn how to control the force and direction of breathing, training the muscles of the lips.-Small and supple, indoor and outdoor playable, it also is an interactive game.-Children's educational toys, birthday gifts, kindergarten games, family interactive games.-Can promote parent-child communication when you and your kids are playing together.