Cellular optic glass rod (SONICflex 2003L). Air driven. For removal of calculus and a wide range of other applications. •Hygienic grip •Three different performance levels •50% more powerful than previous 2000L/N •MULTIflex connection -optic (2003 L) •Automatic drive air regulator •Operates at 36psi •(2.5 bar) •Set water at 15 psi