Features： 1.Same as Fast Abs and Abtronic 2.Ten minutes on the ABGymnic is the equivalent of 600 sit-ups! 3. Wireless - Easy to Use / Wear anywhere 4. 6 'Smart' Programmed Routines with 10 variables levels of intensity for a complete and personalised workout 5.Tiny Gentle Electronic Pulses are delivered to your muscles 6.Tones your Tummy， Waist， Legs， Arms and Bum 7.Comes with 2 Adjustable Waist and Leg Straps 8.Battery Included 9.Full Instruction Manual and Workout Guide 10.Proven for Fantastic Results 12.Keep in Trim without the Gym 13.there are 2 belts. one short is 25cm. one long is 50cm. all is 75cm， it's can connected together to use.and there are stretchy. it's can more longer. NOTE：This product is not suitable for pregnant women or people with a heart disease. Package inckuded: 1 X Muscle toning belt 2 X Belt 2 X Cell battery 1 X User manual in English