Description: Large screen display, clear image and convenient reading. Widely used for cooking, skin care, baking, washing, steaming, showering, conditioning hair, kids learning reminder,homework, exercise, gym workout, sports, games and classroom timer activities (for teacher, student, kids and other people). Suitable Battery: 1pc Button Battery for Round Shape Timer, 1pc 3A Battery for Square Shape Timer (No Battery is Included with package). Counts Up and Down: Simple operation with count down or count up functions with max time: 99 min., 59 sec, this can also act as a stopwatch counting up from zero. Portable: Easy to store and take on the go with simple lightweight for cooking or any other activities. Specification: Material:plastic Size Chart: Size of Square Shape Timer:Approx. 7x7x1.5cm/0.28x0.28x0.06 inch Size of Round Shape Timer:Approx.6.5x6.5x1.5cm/0.26x0.26x0.06 inch Package Includes: 1 piece of Timer Note: Due to the different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2mm error in size.