Be careful when your order yours…there are three models to choose from. One has a timer, another has a counter and the third comes with both (for more $$). I needed the counter as, after about 8 laps, I lose count. Nifty little guy keeps me in line…keeps me from cutting the workout short, but guards me against lap forgetfulness. Seller was wonderful and patient, too…I accidently bought the timer model and he kindly exchanged for the counter. Nice and reliable product.

was not aware that this was not a lap counter .. not very clear that the only this this does is perform as a stop watch! BEWARE

I use this all the time for timing intervals on the bicycle and for timing rest periods in the gym. Simple tool, easy to use, wear it like a ring or wrap on my handlebar.