G33-135 G33135 Graves Speculum With Smoke Evacuation Tube 6 3/4" x 1 3/8" G33-130 G33130 Graves Speculum With Smoke Evacuation Tube 4 1/2" x 1 1/4" G33-125 G33125 Graves Speculum With Smoke Evacuation Tube 4" x 1 1/4" Medium