The spikey massage ball is great for reducing muscle tension, in the legs, buttocks and feet.
The Spikey Ball has been designed with protruding nodules, which can help increase blood flow helping to decrease muscle tension.
Muscles can build up general tightness, as well as specific areas of tension called trigger points. Sometimes the trigger points can refer to another area distal to that area and produce a dull ache in that area. The spikey nodules can be used in a stationary hold on a trigger point to release for 30 seconds at a time. It should be a dull ache and feel like it is releasing, and is very safe for use in large muscle areas like the gluteals and thighs.
If you have specific tightness in the shoulder blade region and mid back, you can stand at a wall and release that area well by using your body pressure with the ball pinned between your shoulder blade and the wall.