Sklar Wisconsin Laryngoscope Blades are most commonly used for tracheal intubation. The Wisconsin blade is straight with a slightly curved tip to facilitate placement of an endotracheal tube. It also has a wider, c-shaped flange, which makes it useful with infants and children with large tongues. This product is a fiber-optic, 4mm, #1 English Style Wisconsin blade. It has a working length of 72mm.