1. Highly : 10 knobs accurately designed and spaced for different parts of your body. For those who are serious about massage, it is THE advanced tool for you. 2. Ergonomically designed: Keeps your arm in a comfortable position when applying accupressure to trigger points. Other relevant design features include flattened sides for a grip of the handle and 'S' shaped ridges engineered for strength. 3. Super Affordable: The of an massager is less than an hour of massage . 4. Detachable Design: Perfect for travel purposes. 5. Safe and Green Material: the Massager is made with recyclable and environmentally material. meridian points in traditioanl Chinese medicine By stimulating the meridian system, your pain could be relieved. Believe it or not, it has been practiced for thousand of years and still loved by many people as an way to increase blood circulation, remove toxins, ease low back pain and restore body function. size:62.5*34.4*2.7CM Material:ABS colour:black Package Contents: 1 * Massage Tool Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.