I got this for my 7 year old who has recently started reading a clock.  It is great, it is sturdy.  The adjustable velcro band allows it to fit perfectly to his skinny wrist.  Also, the cool indiglo feature helps him tell what time it is if he wakes up in the middle of the night. Also, the waterproofing is perfect, he never remembers to take it off when he gets in the pool or the bath.