The Massage Blocks Low Back Tool is an innovative device to help you apply deep soft tissue massage to the lower back without the help of a partner of therapist - relax muscles and work out knots simply by leveraging your own body weight. Stop muscle spasms with targeted trigger point therapy - either standing up or in a prone position. The tool allows you to adjust and position the direction of your body to get the right amount of pressure. You can increase or decrease the pressure by lifting your pelvis or standing against a wall for more control. The Massage Blocks Low Back Tool is versatile, portable, recyclable and made in the USA.