Promark Promark Hanging Mallet Bag. New and improved, fully redesigned large sized mallet bag is engineered to open 180 degrees across and hang securely on marimbas, vibraphones and xylophones. Features enough space to accommodate a full mallet collection for virtually any size performance with large zipper pocket on back for sheet music and accessories. Sized appropriately to hang two bags across any 4.3 octave marimba and full zied vibes. This bag is made of weatherproof ballistic nylon with wide pockets that allow for quick mallet changes, even with mallet heads facing downward. Features on-the-fly rain guard flaps for quick cover from the elements. Field tested and approved by the 17 Time World Champion Concord Blue Devils.