Material: high-quality ABS material, durable. Mechanical timekeeping do not require batteries. Practical : Egg timer is very suitable for cooking food, can prevent biscuits, cakes, barbecue and casserole from burning. The perfect choice is to wake up from a nap, which can you from deep sleep. Time setting range: You can set the time as expected within 0-60 minutes. Can run without batteries, automatic . If you switch to the time setting of mechanical drive, the doorbell will ring automatically. Usage: Set the timer to 55 minutes, then turn it counterclockwise to the required time, for example B. 20 minutes. The timer will sound after 20 minutes. Do not use excessive force or repeated rotation when tightening, so as not to damage the built-in movement. Time management: very suitable for kitchen timer, sports timer, egg timer, homework timer, time block, debate or competition timer. size: 6.5x8.7cm Material:ABS colour:Brown Package Contents: 1 x Timer Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.