Premier 9086502 Coated Graves Loop Surgery Specula Large (1-3/8" x 5" blades). Designed specifically for use during LOOP and other electrosurgical procedures1, the non-conductive coating on these instruments ensures the safety of both patient and physician. These Premier "Loop" Surgery specula are affixed with a smoke-removal tube. The tube, mounted on the upper blade, provides safe and convenient evacuation of electrosurgical plume from the vaginal cavity. Scratch resistant, non-conductive coating and fully autoclavable.