Life/form® Replacement Neck Skins by LifeForm $0.00 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).