Gets fit and healthy with one of our fat loss, fitness, boxing and personal training programs. Or take your game to the next level with your own JX-Fit Multi-gym. No need to pay for a gym membership! You can now get sexy for summer or for the rest of your life with JX-fit. Jerai fitness is a multi gym and cross-training exercise machine which will redefines your workouts, making it cleverer, easier, and dynamic.