Simple one click timer for the six most common weight training rest breaks - 30 secs, 60 secs, 90 secs, 2 mins, 3 mins, 5 mins. (And also 2 user defined timers if needed.) When you are weight lifting/weight training, or doing any high intensity workout you need timed rest intervals between your work sets. The length of the rest break is important, too short and you will not recover enough to do the next set, too long and you could reduce the training benefit, cool down or waste time. Gym Rest