How to Explain swim kick board to Your Grandparents

http://collinulwi033.over-blog.com/2019/07/easy-way-to-teach-kids-how-to-swim.html

i was amazed how easy to use it in the first time. just pour in the bubble liquid and turn on the power button it produces a lot of bubbles immediately after turning on. my kids got a lot of fun with this bubble