High Quality Material: This cute countdown timer is made of premium ABS material, which is durable and stain resistant. It is 60 minutes manual countdown timer. No Battery Required & Easy Operation: The mechanical timer doesn't require any batteries, it is energy saving and eco-friendly. Just wind it up and set time, it will work. Why not ring? - Very important, please follow this instruction: Step 1: "Wind Up". You must wind the timer from 0,5,10,15 ... to 55 (otherwise, it won't ring); Step 2: "Set Time". Wind the timer from 55 back to the time you wish to set. Perfect for Any Occasion: It can be used for timing exams, homework, play time, TV time, cooking, etc. Super cute timer for kids, great for kitchen lover. Guarantee: We are confident with the quality of our cute countdown timer. If for any reason, you are not satisfied with it, please let us know and we will make it right- offer a replacement or give a full refund.