The timer is made of ABS and metal materials, and the timer can be up to 60 minutes long. Mechanical, no battery needed. The cute Little bird-shaped timer will illuminate your kitchen. You will no longer need to worry about boiling and burning food.When you are particularly busy in the kitchen, this timer will remind Functional kitchen timer, can measure kitchen baking, frying, boiled eggs, biscuits, cakes at home The cute Little bird-shaped timer can also be used as an ornament. Christmas and New Year gifts Fun gifts for family and friends. Since this is a hand-made mechanical timer, it does not need batteries. You need to wind it up every time until 55 minutes (not exceeding 55 minutes).Rotate clockwise to "55"