Product descriptionSize: 7cm/9cmColor: rose red + Grey, DarkBlue + blackMaterial: PVCPackage content: 1* massage ball1.RELIEVE TENSION in your feet, back, muscles and fascia; target plantar fasciitis, deep tissue and trigger points.2.FEEL COMFORTABLEstart massaging with a softer ball, progress to a firmer ball; increase pressure when you are ready.3.CLEAN AND HYGIENIC all the balls are made from easy to wash rubber-like material, have no odor and leave no residue.4.EASILY USE the balls are lightweight and ideal for daily use at home, at the office or anywhere you need them.5.SAFE & PORTABLE built from pre-tested PVC material thats environmental-friendly, nonpoisonous, odorless, moisture-proof and safe to handle, our massage balls are a reasonable but affordable solution for on-the-go trigger massage. (zhongchengdaye)