The Quick-Timer™ is adjustable from 1 to 60 minutes in 1-minute increments. Turning the pointer to the desired countdown setting automatically winds the timers. Indicating pointer always shows exact time remaining. Loud five- second bell rings at zero. Easy-to-read, and use‚Äîthere are no buttons, batteries or confusing settings. Case is chemical resistant ABS plastic. Comes supplied with both lanyard and key-chain. Blue/white, with magnet on back, diameter 2-1/2 x 1 inches, weight is 3 oz.