The Rocktape Rock Balls come in a pair, 1 large spikey massage ball and 1 small smooth massage ball, as well as an instruction book showing you how to target your trigger points to work the knots out of your muscles

Rocktape Rockball Specifications

• 1 x Large spikey ball – 3.5" diameter
• 1 x Small smooth ball – 2.5" diameter
• Made from Rubber