Jar clock ---- Creative products -- Kupin.com

When I was a child, naughty boys always like to take the pot, to catch small insects in the grass, those carefree time let people miss, if it can be sealed, how good? That's how designers got the idea to create the jar clock. The driving part of the clock is placed near the mouth of the tank, the scale sign is attached to the glass surface, and the vertical hand indicates the specific time.