Rarely we find a device focused on a specific area such as thigh or leg and strength and here comes the role of resistance cords training thighs and legs of the sleeping muscle and thighs and leg strength and lift.
This kit comes to help you focus on the sleeping muscle.
If you play one of the martial arts games, Kickboxing, Taekwondo, Karate or others, this group will be ideal for the strength of the leg, lift and kick.
Can be used for several different maths.
Stretching the cord may be seven times what it is based on your strength and the strength of your knees