The Mystery Box from Wooden.City is a model full of fascinating surprises. Assemble the complexly constructed Mystery Box entirely without glue and discover its secrets along the way. Inside the Mystery Box, there is a compartment for storing and hiding coins, keys, or other small items. The Mystery Box features a hidden mechanism for sliding the individual lid pieces. Only after that can the Mystery Box be opened with a special key. A detailed step-by-step instruction manual is included, with explanations that are easy to understand. The kits contain all the necessary parts and tools for assembly. You will only need a pair of scissors and a piece of wax (such as a candle) to lubricate the mechanical parts for smooth operation. The included instructions will specify which parts you need to wax. Wooden.City develops and produces complex wooden kits that anyone can assemble themselves. The models are constructed entirely without glue. All parts are laser-cut from birch plywood sheets. You do not need to cut or saw any parts yourself; you can easily push the individual pieces out of the boards. This allows you to start assembling right away. All models feature mechanical functions. Gears and rubber band motors bring the assembled models to life. The open design makes all the movements of the model visible, so you can closely observe what happens inside the model. Only birch plywood from sustainable sources is used as material, and even the packaging is made from the same material.