My daughter started using it to 7 months. She immediately understood the trick and shakes his feet to move forward. What I like about the product is that baby is not impeded between the legs like most buoys and other baby products. She's free to move and see what this product! Only small downside: it's not so easy to install it in, but great when it could I think she put it herself. In addition it will up its 4 years so I pays my purchase!
