insulated, non-conductive, 5-1/2″ (14.0 cm)?Desmarres Lid Retractor is a specialized tool for a variety of ophthalmologic procedures. The retractor is placed on the conjunctival surface to pull the lid away from the cornea and deeper structures during a procedure. The insulated, non-conductive tip is ideal for surgeries involving electrodes or cauterization. Three different sizes are available depending on patient variation.