An end effector assembly of a surgical system includes a blade and a jaw member movable relative to the blade between a spaced-apart position and an approximated position for clamping tissue. The blade defines a first width and the jaw member defines a second width wider than the first width. The jaw member defines a first side facing the blade and a second side facing away from the blade. A marking is formed on the second side of the jaw member facing away from the blade. The marking defines a third width substantially equal to the first width of the blade to allow a surgeon to visualize a width of the blade when the blade is not visible.