Bruce Lee was described by many as a "forearm fanatic" which makes perfect sense when one is devoted to the martial science - stronger wrists and forearms translate to harder punches and better grappling. This style of gripper is a simple design and has been around for decades, well before Bruce Lee came along, yet many people still know and refer to it as "The Bruce Lee Gripper."
This particular piece was made for Bruce by his friend George Lee (no relation) and he used it often. We have our own version of this type of grip machine available from time to time. This device actually brings quite a bit to the table, most importantly in our opinion, is to be able to train the crushing movement in different ranges of motion. much like one could use a power rack to improve various exercises