Not sure if they work
My daughter is almost 5. I got the for her to use while in her carseat. They fit her wrist well (not too tight). She was excited to use them and she never took them off. Until we were out of the car. We tried slightly different positions on her wrist, but she still complains of nausea while wearing them. So because there is room for error with placement on the wrist, I'm not sure  if we are using them incorrectly or if they just don't work.<br /><br />I gave three stars because I appreciate the quality of them.
Rating: 3 stars