Life/form® Replacement Neck Skins by Nasco Healthcare $167.95 LF00994 A Life/form® Replacement Neck Skins / LF00994 A / Cart Title Life/form® Replacement Neck Skins Product ID LF00994 A CheckoutType Cart Add to cart Pkg. of 6. To be used with Life/form® Cricothyrotomy Simulator (LF00994U).