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 blocks] The number of Duplo cylinders is 24 x 24 dot base plate. The Duplo base plate is compatible with Duplo blocks, but the Duplo base plate is compatible with all major blocks that accept large 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 block. Even if you turn the Duplo backplane, the building block will not fall. We protect your success. 5. [Preschool gifts] Whether it's houses, 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 everyday gift to children from 18 months and up.