I bought this quite a while ago. I don't remember how much it cost. I checked the contents of the box for the first time when I decided to list it, so the contents are like new. The box has some creases from being in a drawer. The largest is approximately 15mm. Includes a magnifying glass. Please use it for your children's studies. Product Notes: Chondrites are considered "primordial meteorites" that collect the same materials from around the time the solar system was born, about 4.6 billion years ago. Therefore, unlike the Earth's rocks, which have lost their initial information due to the Earth's violent changes, they have extremely high academic value for studying the early history of the solar system and the evolution of matter.