ENT Diagnostic Set WG-I 56x34x32cm3/ctn, 20pcs/ctn, 17.5 ... design,no cornea reflecting light and even lighting,which highly improves diagnostic function.Aesthetic and endurable ... battery handle is equipped also.WG-I,II,IIB,Diopter compensation: ±1,±2,±3 ... coincided with axis of equipped lighting source,which suits for further inside check.Different sizes ... C"Type ENT Diagnostic Set WG-I