Hellow guys, Welcome to my website, and you are watching Interval timer - 45 sec rounds / 15 sec rests (including links to 14 workout routines). and this vIdeo is uploaded by Dark Raven Wargaming & Time Taker at 2017-01-09T14:51:00-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.