Песочные часы в стеклянном корпусе Фиолетовый песок

An hourglass is a device for measuring time, consisting of two vessels connected by a narrow channel. The sand is poured from one vessel to another, and the time is noted when all the sand has expired. Hourglasses are often used for decorative purposes or as toys, but are also sometimes used in the kitchen or in sports to measure specific periods of time.