The suitcase is constantly in our children + on numerous visiting children since 3 years in use and still in top order. The utensils and above all the cases are made of durable plastic, almost unbreakable (with comparable products already experienced another) .The suitcase lock can be opened easily, so that even small children do not need help. It's all included, what the little doctor needs. One of the favorite toys with us. I can highly recommend. Amended Note: Our luggage was bought years ago almost 4, the stethoscope is still quite, although very often used. Possibly it is now a different model or worse processing ?!