Ceramic insert, lower blade element, Andis CeramicEdge 26T Ultra Fine-Tooth Cutter. With very fine, closely spaced 26 teeth. Designed to glide smoothly through fur and provide a clean, smooth finish. Compatible with all Andis CeramicEdge and Andis UltraEdge blades (except sizes 40 and 50). The ceramic blade heats up less than standard steel blades and stays sharp longer. Andis CeramicEdge 26T Ultra Fine-Tooth Cutter: Snap-On lower blade element for Andis CeramicEdge and Andis UltraEdge blades (except sizes 40 and 50) with 26 very fine, closely spaced teeth that glide smoothly through fur, ensuring a clean, smooth finish.