The Andis SlimLine Pro Replacement T-Blade is perfect for cutting performance on the SlimLine Pro Li Cord/Cordless Trimmer. The t-blade is made of carbon-steel with a polished finish for a long edge life. It is the replacement t-blade for the SlimLine Pro trimmer. Carbon-steel for dependable, long-life blade that stays sharp. Close-cutting T-blade. Replacement for model ORL, Cordless T-Outliner Li trimmer.