Features: Made of high-quality plastic material, durable and reusable. You can set up to 999 days, 23h, 59 minutes and 59 seconds. It will alarm for 60 seconds when arriving at your setting number. The number is easy to read. Just a glance and you can easily read the timers displaying with it is clear, sepearate number. Use Instructions: Hold the set button until you see a number start flashing. Push the set button until you get to the number you want to change. Press up or down to adjust that particular number. Keep hitting set until the screen stop flashing. Press the“UP”button to start/pause the counting down. Our timers are specially designed. It could catch your eyes. Specifications: Material: Plastic Color: Black/White Size: Approx. 4.33x1.85inch(11x4.7cm) Package Includes: 1x 999-Days Countdown Timer note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.