[ How to Play] - The deck of the tower bridge is openable. At the same time, such 3d wooden puzzle is equipped with LED that illuminate the tower itself, just like the London Tower Bridge lights up the way for boats at night. Just turn on the bottom switchand the model kit will light up. [ Assembly Tips ] -pcs-project requires great patience and carefulness. Eco-friendly wood sheets, necessary spare parts, illustrated English instructions, all in one package. Any problems occurred during assembly, pls feel free to contact us for assistance. No batteries included. [ Various Scenarios ] - This tower bridge 3D wooden puzzle can not only be used as desktop decorations, holiday gifts, but also as one of many practical choices for camping outings and family parent-child interaction. [ Educational 3D Wooden Puzzle ] - How can children learn while playing? This tower bridge 3D puzzle can not only offer children the fun of assembly, but also exercise and develop children's imagination, creativity and hand-eyes coordination. What's even,let them understand the scientific principle of the tower bridge.