AbGymnic Ab Belt is an Electrical Muscle Stimulation (EMS) device. EMS technology has been used by medical professionals for decades to build and maintain muscle tissue. This technology is now being applied for home use to allow regular joes access to this technology. How does EMS technology work? AbGymnic provides an electronic pulsating signal to your muscles that cause you muscles to flex leading to firmer tighter and more defined abs. Ab workouts have been easier. With AbGymnic you don't have to spend hundreds of dollars to use this technology. With AbGymnic Ab Belts you should see results in about 3 to 4 weeks without having to a single crunch or sit-up. AbGymnic features 6 pre-programmed high-impact exercise routines. 10 minutes of Ab Gymnic is equivalent to 600 sit-ups. AbGymnic belts can be used with any water-based gel. For refills we recommend using a generic brand of K-Y Jelly. It comes with 1 adjustable belt that can be used on your abdominal muscles arms or thighs. The lightweight sleek design of AbGymnic makes it discreet and portable so you can wear anywhere without anybody noticing.