Hand-cranked Bubble Machine Technology Small Production Children's Science Experiment Teaching Toys For Young Students Handmade Diy Material Bag

Material:plastic/plastic Specification:150*100*150mm Whether can DIY:Yes Packaging:Other Whether multi-function:No Whether electric: Yes Ability to develop:Hands-on brain Science toys type: physics Colour:hand bubble machine Applicable age:Junior (7-14 years old) 2.:Science experiment teaching aids 3.:Handmade diy small invention 1.:Science and technology small production toys