[Helps to grow taller].Scientific research has shown that proper jumping every day helps to grow taller [Interest Guidance].Multi-function touch-up boosting artifact, interest guidance, children grow taller happily [Intelligent shutdown].A of modes to stimulate children's desire to challenge, intelligent shutdown [Material Environmental Protection].Environmentally friendly ABS material, and more secure, the material is environmentally friendly, and more [High Quality].100% new, [Glow]Unique luminous design makes children more interested [voice]A single group of voices is counted 30 times, the number of times is reasonable and appropriate, not too much, not too little, 10 times of voice encouragement in the whole process, once every 3 seconds, to stimulate children's interest. Product name: Children's height touch device Power supply: 2 X AA batteries (not included) Colour:light blue Material:ABS Package Contents: 1 set x Height Touch Device(batteries not included) Only the above package content, other products are not included. Note: Light reflection 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.