If you are not familiar with Mifold products please go to the www.mifold.com for safety and specs. They have all your answers in a FAQ link and this product although sold out is still up and links a video and technical features. Please do your research. What I will say is I love Mifold and I have 3 and will be keeping them for another couple of years. I use them for vacations and travel. I have a 10, 7 and 6 yo. The ones I kept are a slightly different style and in 3 different colors, well because you know: kids! I had to shop for Mifolds on other e and M sites like Poshmark, because they were always sold out in stores and on mifold website. I got desperate before our last Disney trip and bid on several including this brand new Mifold sport. So I ended up with 5 last year….