Sand Timer Foxnovo Colorful Sandglass Hourglass Sand Clock Timer 30sec 1min 3mins 5mins 10mins 5pcs Random Color 5 pieces of different time hourglass sand clock timers in one set will be sold together by random color. Material: durable PVC, ABS, glass tube and sand. Each Size: about 8.52.5cm. Counting time: 30 seconds, 1 minute, 3 minutes, 5 minutes, 10 minutes, each one with 10% time deviation. Ideal for timing cooking, games, exercising and so on. Also act as a wonderful decoration for your home and office. Note: This is a sand timer made for games. It is not a precision timing device, so there is time deviation.