Massage Ball

*Dia : Ø 65 mm
*Roll this unique ball under your feet, in your hands,
  or over and sore and tired muscles.
*The knobs provide smoothing stimulation that
  will immediately begin to relax and eliminate tension.
*You can control the depth of massage with
  applied pressure for muscle soreness.
*Small enough to fit in handbag, sports bag;
  this easy-to-use massage ball is great for
  use any where, any time.