In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. The patented Aulos "cavity wall" design, coupled with the use of a new molding powder of high tensile strength, have brought about the production of this alto model which is remarkably light in weight. Dark brown; three-piece; Baroque (English) fingering; ABS plastic; curved windway; simulated leather bag; cleaning rod; fingering chart.