SX-Timer™ is adjustable from 1 to 60 minutes in 1-minute increments. Turning the pointer to the desired countdown setting automatically winds the timer. 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. Unit is supplied with both lanyard and key-chain. Translucent blue/white, diameter 2-1/4 x 1 inches, weight 2-1/4 oz.