The shell is formed from flax fiber sheets, a renewable material, which is lined and upholstered.
BIO-A cases are adjustable to fit violins (and bows!) for 4/4, 3/4 and 1/2 size violins – providing a case that a younger student can keep while they grow through these sizes.
Made from a sturdy and plant-based flax resin. 4/4 only.