CDN Egg Shaped Timer in pearl white (TM12-W) counts up and down by seconds, up to 100 minutes. Featuring last count recall and counts up after reaching zero. To use; rotate base in either direction slowly for 10-second increments. Rotate fast for 1-minute increments. Then press the start/stop button to start counting down. When the easy to read display reaches zero, it will sound the alarm, then begins to count up. The last count is recalled. Constructed of food-safe ABS plastic. 1.5V AAA IEC LR03 Alkaline battery included and instructions.