feature the Standard IPS, for adults and teens, which can be used by anyone, whatever your weight (min weight 70 lbs - 32 Kg). No problem if you are a heavy person. If your weight is well above average, you will however get less rebound effect and might consider opting for a Pro model.

feature a quite harder IPS. It is suitable for heavy weight individuals and/or athletes who want a harder workout or do extreme sport.

feature a softer IPS suitable for pre-teens and teens, weight range about 45 lbs (20Kg) to 110 lbs (50 Kg).