The 5-in-1 replacement blade is a fine-tooth clipper blade constructed from stainless steel with a corrosion-resistant chrome finish. It attaches to a compatible Wahl cordless clipper head using a molded plastic lip that snaps into place without tools. A built-in lever lets the blade shift between five cutting lengths, equivalent to standard #9, #10, #15, #30, and #40 blade sizes, so one blade covers a range of trim depths from a longer pass down to a close, surgical-style finish. The fine tooth spacing is intended for animals with fine or soft coats, helping the blade glide through hair with less pulling. Tooth geometry is designed to run cooler during extended clipping sessions. One blade is included and it is meant to be swapped directly onto the clipper in place of a worn or damaged blade. Wiping the blade with a disinfectant spray and applying blade oil after each use helps keep it cutting smoothly over time.