The Momentum Clock is great for those on the go! Batteries are included in this classy timepiece award. Measurements are 2-3/8" diameter x 1-1/8" H closed, and 2-3/8" diameter x 6-1/2" H open. Free 24-hour service. This distinctive clock makes a perfect award for production leaders, athletes, teachers, academic decathlon winners and more. They'll glow with pride when you give them this award. Bestow it on those who make the best of their time!