At age 5 or 6, a child’s teeth begin to change; the milk teeth are exchanged for the adult teeth. This is an exciting period for the child, when they feel like they are finally “growing up. So how nice is it that you can save the child’s teeth for later? Our teeth box decoratively preserves the teeth of the child’s milk teeth. The tooth box can be set upright or hung on the wall with a screw or nail.