Although partially opened, it is unused. - Model Number: 71796 - Series: NINJAGO - Recommended Age: 9 years and up The outer box, parts bag ①, and instruction manual have been opened, but it was not assembled. My son didn't find it suitable for his age and gave up immediately. Parts bag ① has been put back into the bag. I think it will be no problem for those who assemble and play with it. Thank you for looking.