Usage tips: 1. [Promotes Creativity] The size of these two Duplo boards is 38 cm x 38 cm. Duplo boards can be used in various scenes to build large houses, castles, towers, etc. Children play the most fun games and display all their creations with unlimited imagination and creativity. 2. [Compatible with all major brands] The number of Duplo cylinders is 24 X 24 dot base plate. The Duplo base plate is compatible with Duplo bricks, but the Duplo base plate is compatible with all large blocks that accept large grain standard blocks. 3. [Safety and environmental protection materials] Our large Duplo base plate is made of environmentally friendly ABS materials, which are odorless, allowing children to enjoy happiness and health while creating creative thinking. 4. [Easy to use] On this Duplo base plate, you can easily detach and fix the structure block. On the outside, the Duplo base plate can be firmly attached to the brick. Even if you turn the Duplo backplane upside down, the building block will not fall. We protect your success. 5. [Preschool children's gifts] Whether it's homes, airplanes, boats, or small animals, there is a Duplo floor, and every building project can achieve unlimited creativity. Give this practical game as a birthday present or daily gift to children from 18 months and up.