IronMind - ImTug: The Two Finger Utility GrippersTarget your training: focus on one or two fingers at a time even your thumb: pinch or crush your choice one or two fingers at a time precision manufacturing for world class performance, feel, and appearance perfect and portable way to train your thumb proprietary IronMind GR8 springs in 7 strengths: precise, durable, good looking ergonomic handles for reduced pressure on soft tissue of hands CoC compatible: works hand in glove with Captains of Crush