This product designed with makes it can work without battery, electric and cord, so it is environmentally friendly and has a long services life. This product adopts magnet design, you can stick this timer on iron containing objects such as refrigerators and microwave ovens, it is convenient for you to use. Timer is made of high quality stainless steel material, durable and lightweight. Timer length is 7.7cm, width is 7.7cm and height is 3cm. This product is suitable for school, home, household, kitchen, etc. Item Name: Timer Material:Stainless Steel Size Details: Timer: 7.7cm x 7.7cm x 3cm/3.03" x 3.03" x 1.18" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 X Timer 1 X User Manual