Green model with bayonet locking systemulum Ø 2.5 – 3.5 – 4.5 mm – High quality, reliable and indestructible instrument – Suitable for nose, ear and throat diagnostics – German 2.5 V bulb, adjustable with rheostat – Quality lens a3X, removable – Ideal for tympanic membrane testing (optional pump) – Supplied with 3 autoclavable specula and color-coordinated leatherette bag, all latex-free – Works with two type C batteries (not included)