Sanduhr Timer mit Blasensingen, Kreativ Timer mit Flüssigkeitsbewegung aus

【Artistic Hourglass】: This glass hourglass is with special foaming liquid to form clean and beautiful bubbles. 【Glass Hourglass】: Because the different size of the bubbles affects the flow rate of the liquid, the bubble timing is more blurry than the traditional hourglass timing.

eBay