Collector's item: Leonardo da Vinci - Ball bearing timer

Recreate Leonardo da Vinci's genius design with a model that even beginners can easily build!

The assembly process requires no glue, paint, or batteries; all that is needed is careful visual inspection to ensure that all gears and parts are installed in the correct positions so that the gears can drive the timer.

► Product dimensions: 25.8 x 15.2 x 12.5 cm

► Packaging dimensions: 20 x 30 x 5.75 cm

► Material: Plastic

► Origin: Philippines

Precautions:

► No batteries, no painting, and no glue are required for assembly.

► Small parts should be kept out of reach of children.

► This product is suitable for users aged 14 and above.

► Please note that the appreciation period is not the same as a trial period. Assembly will affect your return rights. Please keep the packaging intact when returning or exchanging the item. If there is any damage,

We regret that we cannot accept returns or exchanges.

► Books, merchandise, and gifts wrapped in plastic film will not be accepted for return or exchange if the plastic film has been removed.

During assembly, make sure that each part is properly assembled and fits tightly to ensure that the model functions correctly after assembly.