ROBOTIME 3D Wooden Puzzle Medieval Cannon Model Kits Building Set Gifts for Adults and Teens HIGH QUALITY: This 3D Wooden Puzzle Kit comes with laser cutting technology , no burrs, smooth wooden sheets. Unique vintage cannon model kits for adults to build. After this model kits finished, it can fire cannon balls changed by table tennis balls. Graphic Instruction: The clear illustrated English instructions can help you assemble this model kit easily. Just follow it step by step, easy to complete. All you need comes in the package. FUN PROJECT: ROKR cannon comes as a 3D puzzle of 158 pieces. No battery needed. The assembled size is :12.6×5×8in. It may take 2 to 3 hours for you to finish the kit. DECORATE YOUR SPACE: This 3D puzzle kit can be a simple decoration. You can put it in your office or bedroom. FASCINATING GIFT: People will be very surprised when they received this gift on birthday or Christmas day. Very cool choice for your family members, lovers or friends.