The range of Glass Sand Timers from Nicola Spring packages over 1200 years of timekeeping expertise into a crisp, contemporary design that filters seamlessly into any style of décor. Coming in three sizes - 15 minutes, 30 minutes and 60 minutes - these hourglasses work exactly as hourglasses always have; simply turn the timer upside down and away you go! With no need for batteries, and no fiddly buttons or complicated instructions to follow, these sand timers truly are the simplest way of tracking your cooking process. The durable glass construction is designed to be sturdy enough for both home and restaurant use alike. Features Classic Hourglass Shape - Harness the power of over 1200 years\' timekeeping expertise Contemporary Styling - Frameless glass suits any style of décor Durable Glass Construction - Suitable for home and professional use Infinite Reusability - Simply turn it upside down again and again for a lifetime of use