15 months
2
18 months
3
2 yrs
6
3 yrs
9
2 on bottom 1 on top (n shape)
2
15 months
3
18 months
6
2 yrs
9
3 yrs
2.5 yrs
3 horizontal and 1 on top (L shape)
3 horizontal and 1 on top (L shape)
2.5 yrs
2 on bottom 1 on top (n shape)
3 yrs
4 yrs
Steps (6 blocks, 3 + 2 + 1)
Steps (6 blocks, 3 + 2 + 1)
4 yrs