Digital Timers Set: the package includes 24 pieces digital kitchen timers for cooking in black; Please note that the 1 x AAA battery is not included; In terms of quantity and color, we will meet your needs and replacements in daily uses Convenient to Use: the magnetic countdown supplies with the alarmbuzzer will beep loudly in large spaces, allowing you to hear clearly in another room. Built in Memory Setting: the built in memory setting of the timers for teacher provides convenience to avoid the need to reset every time; You can fast forward to set 60 minutes by pressing and holding the minute button for more than 3 seconds and you deserve the basic countdown timers for time management Size Information: each of the timers measures approx. 6.5 x 6 cm/ 2.56 x 2.36 inches, easy to carry and use and suitable for daily and exercise applications; Please note that the battery is not included Widely Application: our small digital kitchen timer can be widely applied in lunch breaks, learning tests, beauty, sports, talk time, meetings, kitchen cooking, parking, experiments for teacher; The different color timers can distinguish the timing of different groups of games and activities Digital Timers Set: the package includes 24 pieces digital kitchen timers for cooking in black; Please note that the 1 x AAA battery is not included; In terms of quantity and color, we will meet your needs and replacements in daily uses Convenient to Use: the magnetic countdown supplies with the alarmbuzzer will beep loudly in large spaces, allowing you to hear clearly in another room. Built in Memory Setting: the built in memory setting of the timers for teacher provides convenience to avoid the need to reset every time; You can fast forward to set 60 minutes by pressing and holding the minute button for more than 3 seconds and you deserve the basic countdow