All bands are medium tension up to 25lbs in strength.
These bands can be great for toning those hard to train places on the body.
Both the figure 8 and O-Shape expander are great for toning the buttocks and also help sculpt legs and hips, completing the upper and lower leg exercises can also help the ab muscles.
Resistance band with handles can be a great whole body exercise tool, awesome for upper body workouts. You can easily create hundreds of different exercises.