TO BE USED ONLY WITH CAUTERY MACHINES Extendable up to 14cm Regular Length 7cm Regular ESU Pen anti slip Handle length: 153mm Buttons shape: round Length of blade: 70mm ( 40mm exposed length) Extendable 14cm Diameter of blade: 2.36mm Length of Cable: 3 meters Sterile in blister pack Electrocautery or thermal cautery is a procedure that uses heat from an electric current (direct or alternating current) to destroy abnormal cell mass, such as a tumor or other lesion. It is often used to achieve hemostasis (control bleeding during surgery).