Achieve your daily hydration goals by tracking what you drink Track the bottle cap and record the number of drunken bottles; each time you refill the bottle and close the cap, a new dot will appear (a dot equals a bottle) Allows you to track up to four bottles per day Very suitable for use at home, gym or office Made of impact-resistant Tritan with a leak-proof cap The water bottle is equipped with a clever counting cap to track how much water you have drunk, so you can maintain your hydration goals throughout the day. With leak-proof cover. Each time the lid is closed after filling, a new point will appear in the display window, and up to 4 bottles can be tracked per day. Made of impact-resistant Tritan plastic, BPA-free.