The NHCA JPG Image set contains four photos of the inner ear featured in three slides. Two slides show cochlear cross sections—a healthy and a damaged version. The third slide is detailed, magnified image of hair cells, with normal and damaged images side by side. A description of the healthy and damaged inner ear is included. An NHCA logo is tastefully displayed in a corner. The slides, sold only in sets, are designed for use in employee training sessions, management training, and CAOHC courses. They can be used in public speaking requests of all kinds related to the hazards of noise on hearing.