Wahl Ultimate Competition Series Clipper Blades Wahl Ultimate Competition Series Blades are designed to cut faster and smoother for great results. Ultimate Series Blades cut 2 1/2 times faster than Wahl Competition Series blades. Groomers love the performance of Wahl Competition Series clipper blades. Midnight color for easy reference. Each blade is hand-tested before leaving the production line. 100% quality guaranteed to cut fur the first time. Smooth cutting design leaves a show-quality finish. Fits Wahl Switchblade, Storm, KM2 and most Andis and Oster detachable clippers. Made in The USA. Material: High carbon steel with silky, shiny black chrome finish Cut: Blades are available in the following sizes: 10 blade has a 1/16" cut 10W blade has a 1/16" cut 15 blade has a 3/64" cut 3 S blade has a 25/64" cut 30 blade has a 1/32" cut 4 F blade has a 5/16" cut 4 S blade has a 5/16" cut 40 blade has a 3/128" cut 5 F blade has a 15/64" cut 5 S blade has a 15/64" cut 50 blade has a 1/64" cut 7 F blade has a 5/32" cut 7 S blade has a 5/32" cut 8.5 blade has a 1/8" cut 9 blade has a 5/64" cut *Always replace broken or nicked blades to prevent injury.