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UGEARS Marble Run Spiral Hoist - Fourth Wood Marble Track 3D Puzzle Model Kit with Colored Glass Marbles - 3D Puzzles for Adults and Kids for Self-Assembly - Creative Gift Wooden Puzzle Model Kits

UGEARS 3D Wooden Puzzles For Adults Clock Kit - Aero Clock 3D Puzzle Wooden Model Kits for Adults to Build - DIY Wall Clock with Pendulum Crafts For Adults - Mechanical Clock 320 Pcs

UGEARS Sky Watcher Desk Clock Astronomical Table Clock Wooden Model Kits for Adults to Build - Wooden Clock Kits 3D Puzzles - Mechanical Clock Making Kit 3D Wooden Puzzles Adults