1Various Choices: Choose the right position and the right massage ball according to your different pain areas, 6 massage heads can meet your different needs. 2Relieve Fatigue: Psoas release therapy can effectively relieve cervical strain, neck discomfort and improve sleep conditions, so that your physical condition is getting better and better. 3Delay Skin Aging: Long term use of psoas release therapy tool can not only promote body metabolism and neck blood circulation, but also make you look younger and younger. 4Multiple Uses: This massage tool can also be used at home, in the gym and in the office, on long trips or anytime, taking care of your health anytime. 5Recommendations for Use: The muscle release tool is recommended for use on the floor, rug, yoga mat or bed, place it on the massage ball, and find the acupuncture point. Specification Item Type: Psoas Muscle Release Tool Material: Beech Size: Approx. 32 x 10.5 x 10cm / 12.6 x 4.1 x 3.9in Characteristic: Contains 6 detachable heads that can be repositioned to suit different parts Package List 1 x Psoas Muscle Release Tool Note Please allow slight error due to manual measurement. Thanks for your understanding.