The Laerdal 261-00250 Neckskins D/A-Std is a set of replaceable neck skins designed for use with the Deluxe Difficult Airway Trainer. Each pack includes 6 durable neck skins that support realistic airway management and cricothyrotomy training. These skins feature a hook-and-loop (Velcro) closure system, allowing quick replacement during repeated simulation sessions. They help maintain hygiene, realism, and consistent performance in medical training environments.