[Excellent quality] The hourglass timer is made of high-quality metal + acrylic plexiglass, with classic embossed craftsmanship, the texture is natural and lifelike, retro and advanced, the classic hourglass timer will bring an elegant feeling to your office and home, it will definitely be Let your guests be amazed. [Pure hand blown] The gravity hourglass is carefully designed. Its sand container is blown by hand. At the same time, we have increased the thickness and brightness of the glass, making it more transparent, uniform and soft, and looks more crystal clear. [Accurate timing] You can easily adjust the hourglass for 15 minutes at 720° to display different changes. By turning the hourglass, it can help you accurately record 15 minutes. The timer can help you easily carry out follow-up work and prevent overtime And the fatigue caused