Professional LEAP PQ9907S Digital Chess Clock Count Up Down Timer with Clock 1. Digital chess clock with durable plastic casing 2. Compact Size (unit dimension 13.5 x 9.5 x 4.5cm), Lightweight (unit net weight 135g) and Portable 3. Suitable for home and competitions 4. Presettable count up/ countdown timer, maximum 10 hours 5. with alarm