This SX-Timer™ is easy to use, 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-there are no buttons, batteries or confusing settings. Translucent blue/white case is chemical resistant ABS plastic. Supplied with both lanyard and key-chain. Features: Lanyard/Key-Chain. Size: 2-1/4-Inch Dia. x 1-Inch. Timing Range: 0 to 60 minute. Resolution: 1 Minute. Maximum Time: 60 minutes. Countdown/Countup: Down. Weight: 2-1/4oz. Control Company #: 1093.