Since my son, who is four, only asked for a watch for Christmas, Santa surprised him with this watch, as well as the wall clock and book that Amazon pairs with it. They are AMAZING at assisting him in keeping track of time. We were able to get the blue wrist minutes to/past, but Santa had to reorder the grey wrist watch for us in order to swap out the timepiece. We’ll have to wait and see how long the material will be usable before I can make an update to my comment. The product, aside from that, is absolutely fantastic!!!!