Please read the description in its entirety. These are not complete kits, they are various items from 4 different kits. This will be sold as one set and shipped in one box. 7-8 months: ball drop box (balls not included), first puzzle, play guide 11-12 months: wooden peg drop, sliding top box (balls not included), pincer puzzle, opposite balls, play guide 13-15 months: bunnies in a felt burrow, wooden stack, circle of friends puzzle, 3 stacking blocks, wooden coin bank/carrots/posting lids, play guide 16-18 months: wooden stacking pegboard (missing one peg), fuzzy bug shrub, community garden puzzle, play guide