iGrip Portable Isometric Trainer The IGRIP is a portable exercise device that incorporates the Power of Isometrics to help build power, strength, and lean muscle. Strong build, with 1/8" steel frame and ABS plastic housing. The IGRIP has Force Sensor Technology and comes with Comfort Grips. Comes with a bright backlit display. Easily Portable. Has a 200-lb resistance capacity Electronic feedback provides data to monitor progress. Over 20 Exercises for Men and Woman to increase Strength and Muscle Tone. Great for Athletes, Fitness, Seniors, Rehabilitation and the Physically Challenged.