With the included pictorial instructions and plans and the 192 building pieces, you can build a boat (If using the included plans, the house will measure once built will measures 130 x 80 x 101 cm). Each robust block has an interlocking design and measure 20 x 10 x 7.5 cm. It is suitable for indoor and outside use. Further plans can also be drawn up and the building blocks in the set can then be used to build almost any other structure in your childs imagination. For ages 10 months and over. WARNING(S): Only for domestic use. To be used under the direct supervision of an adult.