Lchen 3 Mins Wood Artistic Hourglass Sandglass Sand Clock Timers Ideal for timing cooking, games, exercising and so on. Also act as a wonderful decoration for your home and office. Counting time: About 3 minutes. Material: Wood, PVC,glass and sand Size: about 2inchx3.5inch. Notice: This is a sand timer made for games. It is not a precision timing device, so there is time deviation.