Mechanical timer - please clockwise twist a circle, then counterclockwise to the time you want to set the time scale, so that the winding on the full, so the sound will be large, ring for a long time, the normal ring error in about 3 minutes.
Wide application - made of stainless steel, soft magnetic and ABS. great for personal up close use at desk or office, exam room, kitchen & dining, bbq grilling, games, classroom, or hair color.
Strong magnetic force - magnet allows timer listed anywhere.
10 minutes - Set up the time according to your needs within 10 minutes.
Notice: never turn the timer counter-clockwise as this can damage the movement.
Mechanical timer, please clockwise twist a circle, then counterclockwise to the time you want to set the time scale, so that the winding on the full, so the sound will be large, ring for a long time, the normal ring error in about 3 minutes