"Our little girl is 5 1/2 and she used her chore money to buy all of the versions of the DOTS bracelets and loves wearing them to school everyday. It is such a great product because the directions are pretty non-existent (Let me explain). Our girl is great at building with instructions, but she still struggles to just build on her own and have confidence in her abilities. She usually thinks whatever she makes "Doesn't look good enough" These DOTS products have really helped get that internal confidence ball rolling along. We can't wait for more expansions within this line. As for the potential lost parts, she has lost one or two little pieces at school (She admitted that she and her friend took them off and were tossing them back and forth) But those couple lost pieces are out of all the bracelets (one or two being worn a day) for four weeks. We couldn't recommend it enough."