Mechanical countdown timer, no electric power needed, just turn the dial! Up to 60 minutes countdown time. Widely used in indoor & outdoor activity, office meeting, housework, classroom teaching and much more.Features:Mechanical countdown timer, no electric power needed, always ready to work.A practical tool for cooking, baking, housework, sports, classroom teaching and much more.Minute-by-minute scale, up to 60 minutes countdown time.Clear black & white big dial, with red mark visualize the elapsed time and the remaining time.Turn it clockwise to the end, and then counter-clockwise back to the desired time, it will make crisp sounds when time's up.Magnetic back, can be absorbed on flat metal surfaces like oven, refrigerator, etc.Made of stainless steel and ABS, anti-rust and sturdy.Tips: every time before use, the following steps must be repeated:1. clockwise rotation to the end.2. counter-clockwise to your desired time.Specifications:Material: stainless steel + ABSSize: 6cm / 8cm (Optional)Color: 6CM-Black, 8CM-RedCountdown Time: maximum 60 minutesItem Size:6cm: 6 * 3.5cm / 2.4 * 1.4in (D * H)8cm: 8 * 3cm / 3.1 * 1.2in (D * H)Item Weight:6cm: 108g / 3.8oz8cm: 127g / 4.5ozPackage Size: 6.5 * 6.5 * 4.2cm / 2.6 * 2.6 * 1.7inPackage Weight: 120g / 4.2ozPackage List:1 * Mechanical Timer