My son uses these everytime he takes a bath, and has now used them over a year. It helps him learn to spell and to count in such a fun way! They're very inexpensive and they got here so fast as well. If I lose a few pieces I'll definitely rebuy some more! I just advise you to get a seperate pouch for all of them! Some of them did lose their shape after a while and stopped sticking to my shower. I have to flatten them out often if he bends them so that they'll stick again.