The blocks have coloured liquid and can be assembled in different ways. This is a different way of learning new colours. PlanToys focuses on offering safe wooden toys, made from recycled wood, that improve children's development, especially from 0-5 years. With the mission of creating a sustainable world, PlanToys is deeply concerned with all stages of the production of its toys, since they are fully committed to minimising environmental impacts. Suitable for children from 3 years old