Splashtastic swim school have been using the Flubble for some time now, and we are very happy with the results. More importantly, the kids love it. What appeals to us the most is that the children's arm movements are not restricted, they do not need to hold on to it, and it helps to provide a lovely, correct, body position which so many find hard to obtain - a truly innovative design for a swimming flotation aid. We have found it an invaluable aid for teaching children to swim, and it is also proving very useful; for child and adult alike, for teaching the more difficult strokes like Butterfly.