3in1 hourglass sand timer

decorative sand timer set with a wooden frame that holds three individual hourglasses. Each hourglass contains sand of a different color: white, gray, and black. These types of timers are often used for managing time in various activities, such as cooking, brushing teeth, or playing games. The different colored sand in each hourglass typically corresponds to a specific time duration, such as 1, 3, and 5 minutes.