Jigsaw Puzzles

3D Metal Puzzles for Adults, Mechanical Metal butterfly Model Kit,DIY Ornament Assembly Crafts Brain Teaser, Perfect Room Decor and Gift Choice. 3D Metal Jigsaw Gear Transmission Mechanical Butterfly Movable DIY Assembly Model. By rotating the rollers, the wing flapping arc can be freely controlled, integrating scientific education. All parts are made of stainless steel, with polished... 3D Metal Puzzles for Adults, Mechanical Metal butterfly Model Kit,DIY Ornament Assembly Crafts Brain Teaser, Perfect Room Decor and Gift Choice.