Note:To set time, first turn clockwise to the max 55-60 minutes to supply enough mechanical clockwork power, and then turn counterclockwise to set the desired time. 100% brand new and high quality. Materials: ABS Hamburger Model Kitchen timer, Manual Timer for Study. This is mechanical timer, please allow 1-3 minutes deviation. Timer goes up to 55-60 minutes. Mechanical, no need for batteries. Size: 7cm x 5cm (Diameter x Height) Color: Yellow. Made in China Package include: 1 x Mechanical Timer Additional Details ------------------------------ Package quantity: 1