For a dependable, long-life blade, look no further than Andis(R) UltraEdge(R) blades. Andis's exclusive carburized hardening process keeps blades sharper for a longer time. Add a special chrome finish that inhibits corrosion and you have cutting solutions that will last for years. Detachable UltraEdge(R) blades enable one clipper to do the work of many-blades can be changed in a matter of seconds! Fits AG clipper models. Blade Sizes:#40 - 1/100", 0.25mm#30 - 1/50", 0.5 mm#15 - 3/64", 1.2mm#10 - 1/16", 1.5 mm#7FC - 1/8", 3.2mm#5FC - 1/4", 6.3mm#4FC - 3/8", 9.5mm | Andis UltraEdge Blades AG | Size 5FC - 1/4" 6.3mm