Trigger Point’s line of hand-made foam massage balls is specifically designed to replicate the feeling of a massage therapist’s hands, so you can get relief from discomfort and tightness on your own. As part of the Deep Tissue Essentials product line, these massage balls use a patented, layered construction made up of different densities. The unique EVA foam surface is very dense, yet still compresses to “grip” the tissue, keeping muscles and fascia healthy. The MB1 (2.6-inch diameter) is ideal for isolated areas, providing targeted relief without pinching or irritating nerves The MBX (2.6 inch diameter) has an extra firm surface that offers a deeper level of massage for more intense relief. The MB5 (5-inch diameter) has a large surface area that provides the unique ability to release tight shoulders, hips and groin.