one smoke tube Graves Nonconductive Speculum is designed for observation and operation of the vaginal canal; primarily used for diagnostic purposes. Insulated instruments feature a smooth, durable, non-conductive nylon coating for LEEP, LLETZ and other electrosurgical ob-gyn procedures. The blue nylon resists abrasion and provides excellent insulation. These instruments are fully autoclavable, and can be insulated however needed, including with exposure to the stainless steel in certain areas like tenaculum tips. Most instruments, including ones not shown insulated here, can be insulated for use in electrosurgical cases – please ask your sales representative or contact us for more information.