thinas owl clock - 3d puzzle, wooden toys, craft kits, diy model gift for adults; brain teaser puzzles stem building model toy gift for teens (161 pcs) thinas 1. 【functional desk decor】 a desk clock on the front, powered by aa battery and a bell timer on the back, driven by clockwork. 2. 【exquisite mechanical craftsmanship】 through the coordination of battery, clockwork, spring, the craft kits drive several gears and pendulum, and realize the functions of clock and pomodoro. 3. 【self-assembly】3d wooden puzzles for adults, model building kits with 161 pcs, attached matte paper, paraffin wax and a small hammer. 4. 【pleasant installation experience】 high-quality wood material and perfect details, the handicraft's fine craftsmanship will make you sigh the beauty of engineering. 5. 【decent gift】 this diy model is a creative gift for teens, and also a challenging gift for adults. in addition, the unfinished puzzles and finished handicraft work are both fascinating gifts. jigsaw puzzles together, creating unforgettable time.