One of the best pieces of equipment for effective grip and core strengthening exercises for BJJ 1,643 views 7 years ago 4 minutes, 12 seconds Uploaded by Bjj Freaks Related videos 2:11 1:42 7:50 6:43 3:09 0:18 2:54 7:41 1:00 5:40 0:34 0:35 0:41 0:12 1:06 0:44 1:05 14:00 11:21 11:08 0:44 0:18 0:41 2:17 1:12 0:44 0:38 4:37 0:34 0:33 1:52 2:07 0:30 2:47 0:22 0:13 1:28 2:48 0:40 0:33 1:10 0:27 0:38 2:26 11:00 4:56 1:13 5:42
