Keri waza with blocks and counters done by Nakagi-sensei and Yamaguchi-sensei

Sensei Masao Kagawa 8th dan JKS explains about maegeri, yokogeri kekomi, mawshigeri and ushirogeri with blocks and counters. First Sensei Shinji Nagaki 4th dan JKS is blocking Sensei Takashi Yamaguchi 6th dan JKS kicks and then Nagaki-sensei kicks and Yamaguchi-sensei is blocking and countering. This was filmed at the JKS world technical seminar in Tokyo, Japan on the 4th of december 2011