UGears UGEARS Aero Clock 3D Wooden Puzzles for Adults - Wooden Model Kits For Adults To Build, Wall Clock Mechanism Kit 3-D Puzzles, DIY Mechanical Building Kits, 3D Puzzle, Hobbies

Functional Timepiece: Real working 3d wooden puzzles for adults clock kit powered by gravity - features counterclockwise rotating hour and minute discs with adjustable pendulum for accurate timekeeping

Timekeeping Display: Innovative time-telling system uses fixed pointer with rotating numbered discs - wooden wall clock model kits complemented by a hot air balloon "cuckoo" that descends on the hour

Authentic Mechanical Engineering: Gravity-driven mechanism with weighted bag powers the 3d puzzles for adults wooden clock kit through an intricate system of gears, escapement wheel, and pendulum

Impressive Wall Display 3D Puzzle Clock: Large-scale wooden models to build adults measures 75x47x16.5 cm with pendulum extension reaching 220 cm when mounted - creates a striking conversation piece

Perfect Gift For Curious Minds: Wood puzzle clock kits for adults to build is an ideal present for clock enthusiasts, steampunk lovers, and mechanical engineers for birthdays, Christmas or Fathers day