Birch shafts in the vibraphone models offer increased rigidity great for fast, two-mallet passages in the upper registers and for turn-on-a-dime dynamic changes from note to note. These birch shaft vibraphone mallets are also great on marimba, offering a unique cord-wrapped articulation.M274Vibraphone: Birch shafts for rigidity, accuracy and speed. Synthetic cord with color-coded star-shaped stitching identifies each model. Features 16 78 in. birch handles.Medium. Great for chordal material in the bottom two octaves.M275Vibraphone: Birch shafts for rigidity, accuracy and speed. Synthetic cord with color-coded star-shaped stitching identifies each model. Features 16 78 in. birch handles.Medium-hard. Perfect for both chordal and virtuosic playing across the entire range of the instrument.M276Vibraphone: Birch shafts for rigidity, accuracy and speed. Synthetic cord with color-coded star-shaped stitching identifies each model. Features 16 78 in. birch handles.Hard. A light and articulate mallet that really sings in the top two octaves.M277Vibraphone: Birch shafts for rigidity, accuracy and speed. Synthetic cord with color-coded star-shaped stitching identifies each model. Features 16 78 in. birch handles.Very hard. Produces an appropriately brilliant sound that shimmers over the entire ensemble.Over the course of a continually blossoming career, Dr. Iain Moyer has amassed numerous accomplishments and made significant contributions to the world of marching percussion. He has composed, arranged and instructed at the highest levels of the Drum Corps activity including ten years at The Cadets, contributing to a World Championship in 2011 and a Fred Sanford High Percussion Award in 2013. Iain has additionally worked with the Madison Scouts, Glassmen, Crossmen, and has held directorial positions at the University of North Alabama and Widener University.Im really excited about my new signature mallets, because I think they offer a fresh approach to the marching percussion idiom, states Moyer. The marimba models are based on a multi-tonal concept, and the vibraphone models feature birch handles instead of the traditional choice of rattan.