General description Made of environmentally friendly wood and high-quality glass materials, this Wooden Sauna Hourglass is sturdy, non-toxic, and durable. It features a 15-minute countdown function with additional 5-minute and 10-minute scales for easy viewing, making it an essential accessory for any sauna experience. Technical specifications Material: Environmentally friendly wood and high-quality glass Countdown duration: 15 minutes Additional scales: 5 minutes and 10 minutes Installation Vertically align the attached wooden mounting rod Pass the rod through the guide hole Hide the mounting rod behind the hourglass for a clean look Usage This hourglass is widely used in various settings, including saunas, family saunas, offices, and restaurants, helping you keep track of your sauna time effectively.