• Two Playing Modes Adult Puzzles: Brain teaser puzzles for adults play manually using the keys or create pre-programmed melodies using the player piano drum; great hobbies for adults men and women
• Musical Instrument 3D Puzzle: Wooden models for adults to build features an octave range from C to C, striking metal plates to produce beautiful, real musical notes; ideal as gifts for puzzle lovers
• DIY Assembly Wooden Puzzle: With 573 laser-cut pieces, this 3D wooden puzzles for adults model building kits offers 8 hours of fun assembly for music lovers and modelers alike; wood puzzles adult
• Educational & Fun Adult Crafts: Wood puzzle building sets for adults ideal for adults; unique puzzles for adults introduces musical concepts and hands-on learning with an easy-to-follow design
• No Glue Required: All pieces of mind puzzles for adults fit together without the need for glue or special tools, making it a perfect project for families and hobbyists; ideal gifts for engineers