【24 Days Advent Calendar with Engineering Vehicle】Our advent calendar "Paradise for engineering vehicle lovers" with various alloy car toys and accessories behind each door. Kids can build their own world of construction vehicles. 【24 Surpises to Discover】This engineering model set comes with 9 engineering vehicle models, 1 dump truck, 3 sports car models, 2 helicopters, 1 tower crane & 11 road signs. 2 extra maps with purchase, one attached to the box, the other is a separate large map that can be laid on the table or the floor to play. 【Develop Fine Motor Skills】Since these construction vehicles have movable joints, they can simulate the maneuvering of a real vehicle. It can exercise kids hand-eye coordination, creativity, operation ability, stimulate their interest and curiosity. 【Alloy Material】The main structure is made of alloy which is not only high quality but strong and drop-resistant. 【Idea Christmas Gifts for Kids】Christmas countdown calendar gift is specially designed for kids boys and girls. Can be used as Christmas gifts, birthday party favors, school prizes, preschool toys. 24 Days Advent Calendar with Engineering Vehicle