The IsoFlex is double lined with natural latex for extra durability. This cheerful version of the time-tested Isoflex is a nice massage for hands! When you squeeze the ball, it's nice and firm. It sort of has the squish of wet sand.
While our "fiddles" may look like toys to the untrained eye, they are truly serious learning tools. Kinesthetic learners will focus better and absorb your material more quickly if they have something to do with their hands.
Measures 2.5" diameter