30 sec work 30 sec rest Interval Timer (30/30 interval timer) up to 60 reps
Simply Timers 59:39 2017-05-31 11:47 765 239 3 635 71

Теги

workout timerinterval timer30/30 interval timerfull tabata workouttabata timer30/30timerbellsimplebeautiful60 repsminminsminuteminutes