The mushroom stone is a heavier and often a more effective alternative to the very popular wooden knobble massager. It is most effective for deep tissue massage and trigger point therapy where specific muscle knots need to be relieved. Provides a deeper pressure with a soft, smooth grip. Base of skull pressure with this tool provided effective relief from headaches and the stresses of a desk job. Also very effective in relaxing shoulder blades, lateral shoulder muscles and neck pain relief. Use on hand, between the metacarpals on the palm side for enhanced relaxation and pain relief.