One 1x1 blue brick (300523) is missing. The rest are complete. The transparent plates are yellowed. The blocks have been used infrequently and are in relatively good condition. However, there is some slight color unevenness on the 1x1 blue bricks. Please refrain from purchasing if this is a concern. All instruction manuals have been laminated. The set comes with the box, but if you don't need it, I can ship only the blocks. In that case, the shipping cost will be different, and I will discount the difference. Please consult the comment section before purchasing.