INGENIOUS DESIGN! The surface of the RumbleRoller contains specially designed bumps that are firm, but flexible, much like the thumbs of a massage therapist
As you roll over the top of the RumbleRoller, the bumps continuously knead the contours of your body, gently stretching soft tissue (muscle and fascia) in multiple directions
YOUR ANSWER TO MUSCLE SORENESS! The RumbleRoller erodes trigger points, helps restore flexibility, and brings quick relief to common types of muscular pain
THOUGHTFULLY INVENTED! By design, the RumbleRoller's bumps are firmer than muscle tissue, but much softer than bone, so they deflect out of the way if they contact your spine or other bony protrusions
Both versions of the RumbleRoller (original density and extra-firm) have been tested by an independent laboratory in accordance with the Consumer Product Safety Improvement Act (CPSIA) of 2008 for lead and phthalates. Both toxins were below detectible levels, which the CPSIA considers safe for use by children age 12 and under. All RumbleRoller products are also latex-free.