Cooking for kitchen-- it comes with the mechanical structure, no batteries are required. you can use it easily. Reusable kitchen -- with fine workmanship, kitchen is not easy to wear and tear, very practical in use. Reusable -- mechanical timekeeping does not require batteries, this is very practical to use. Time manager-- this multifunctional can be used for both cooking and studying, making it a versatile tool management. Kitchen cooking -- the kitchen is made of good material, which is and practical for the long-lasting use. Material: Stainless steel colour: As shown Package Contents: 1 x Kitchen hour meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.