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Make sure this fits by entering your model number. Package Include: 2 stopwatch digital sports timer,it comes with a rope for you to hang it around your neck or wrist, in case of missing it or bothering to hold it in your hand Multi-function: Countdown timer, the maximum countdown time is up to 23:59:59, timing function, alarm clock function, clock function, master all rhythms in sports, to meet your various needs Waterproof design: This stopwatch is made of waterproof material, which is rain-proof, sweat-proof and splash-proof. It meets daily waterproof and can effectively increase the service life of the product. You can even carry some underwater sports Widely used: suitable for sports coaches, referees, athletes, football players, basketball, boxing, shooting, swimming, exercise, sports games, training, runners, timing-including whistle. Regarding the operation method, you can read the instructions. If don't understand, you can consult us at any time Digital Stopwatch Timers Sports Stopwatch,Simple Operation,Easy to Get Started,Stop Watch with Countdown Timer Alarm Large Display Waterproof Stopwatch for Coach Referee - BVIS7AAYA