The Andis Professional T-Outliner Trimmer is a top-rated hair clipper accessory. It is designed for outlining, detailing, and trimming beards, mustaches, and hairlines. The T-Outliner features a powerful magnetic motor that delivers high-speed performance. It has carbon-steel blades that stay sharp for a long time and provide a clean and close-cutting experience. The trimmer is lightweight and easy to maneuver, making it a popular choice for both professionals and home users.