G.U.M. Advanced Mouth Stimulators

The new advanced version (above) is the best of two worlds: the old version (below)

and

BrushPicks (below).

The old G.U.M. style was too small, too soft, and too fragile; BrushPicks are too harsh and stiff.

The new G.U.M.iteration is not only highly functional, but also beautiful.

A triumph of industrial and medical design. 

Pack of 60: $5.27.