Original Design Laser Cut Model Kit - Robotime committed to 3d puzzle for more than ten years, original design, laser cutting technology.Leaning Tower of Pisa/Arc de Trimphe - 137/118 Wooden Pieces, English Illustrated Instruction, Easy to Follow, Sel Assembly Construction, No Glue or any other tools needed.HIGH QUALITY Plywood construction kits 3D puzzles are made of reliable wood making them durable, eco-friendly, and easy to assemble without glue. Laser cut wooden puzzle toys are safe for children and adultsMake Much Fun for Adults and Kids - Challenging Building Project for Kids to Complete. They will have a good time during building and a sense of accomplishment once finished. Good for them to focus something, exercise patience, create hobbies.