Vandoren RT19 Bb Clarinet Reed Trimmer for V12 ReedsThe Vandoren Reed Trimmer repairs damaged tips and increases the strength of your reeds with ease. Adjustable and precise, it utilizes the same blades we use in our factory to create a consistent, clean cut every time. Allows you to trim in 1 4 strength increments Guaranteed to produce a clean cut up to 15,000 times Simple turn of cutting knob completes the cut Works for left and right handed people