Features: Crafted with ABS. You can setting up to 999days, 23hours, 59 minutes and 59seconds. It will alarm for 60second when arriving at your setting number. The number is easy to read. Just a glance, you can easily read the timer displaying with it is clear. Use Instructions: Hold the set button until you see a number start flashing. Push the set button until you to the number you want to change. Pressing up or down to adjust that particular number. Keep hitting set until the screen stop flashing.Press the“UP”button to start/pauses the counting down. Our timer is specially. It could catching your eye. Specifications: Component: Plastic Color: Black/Blue Size: Approx. 4.33x1.85inch(11x4.7cm) Package Includes: 1PC 999Days Countdown Timer note: The product comes with 2pcs CR2032 button batteries Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.