Quality material:The kitchen timers made of ABS and metal material, Mechanical timekeeping products work by winding without batteries, strong and sturdy. Precautions:Please do not counterclockwise directly from 0, otherwise Mechanical movement inside will be damaged. Every time before you use it, Turn clockwise to 55 minutes, No more than 55, then counter clockwise to the location of the required time. Product Size:L x W x H(2.56 x 2.56 x 3.46 inch), Weight: 3.88 oz. Time Management:This timer suitable for a variety of scenarios. Remind you while you are cooking, Help children to manage time about homework. brush teeth, running, yoga, mask beauty, coffee tea time etc. Shape design:Cartoon designs, Cute little animals Shape, no sharp spot, Suitable for children, Easy to clean, just wipe it with a damp cloth