What is the number one dream for all BJJ practitioners? A wicked takedown? No... Credit for the invention of a new bug guard? Nope. It's indomitable grips. With the Scramble Grip Trainers, that dream is within grasp. Made from strong 550 GSM Pearl Weave kimono fabric, the Scramble Grip Trainers were designed to attache easily to a pullup bar or kettlebells, and grasped with your full variety of grip options: collar, pistol, spider... etc.