Wooden Mechanical Combination Lock 3D Puzzle STEM Educational Toy Mechanical Model Construction kit Gift for Boyfriend/Child/Teenager

Laser engraving, mechanical principles set passwords, enjoy the fun of assembly. In the name of love, set an exclusive password to lock love. specification Subject: Mechanical combination lock Finished size :130*69*70mm Material: Wood Recommended age :12+ Components :38 Assembly difficulty: Medium Assembly time: 3h Attention please - Please keep dry, do not soak, otherwise the puzzle will be deformed. - Please understand that the color of the product may be a little different from the photo. - Manual measurement error of 2 ~ 3cm is normal. You can use your own crayons or paint to fill this puzzle with color and make it the most unique puzzle! Package contains 3D wooden mechanical combination lock puzzle *1

[Make your own crafts] This DIY mechanical combination lock model kit consists of 38 small pre-cut wood blocks, which is expected to take 3 hours to assemble, and the finished dimensions are: 130*69*70mm.

[Safe and non-toxic] Made of high quality, safe and environmentally friendly plywood material, the edge has a groove edge, the surface is smooth, no jagged edge, safe for children! It is crafted to last.

[Educational activities] Our DIY wooden puzzles stimulate creativity, enhance concentration, improve fine motor skills, and teach patience.

[Unique design] These wooden puzzles are beautifully made and, once assembled, become interesting 3D displays. The cool decor and details are sure to leave a deep impression.

[Perfect gift] This puzzle is the perfect gift for children or families on any occasion to enjoy the fun of the party with your family and friends.