Christino Adjustable 15" - 17" viola case is one of the best selling viola cases. Its poly-wood construction with medium weight (7.5 pounds) is idea for all levels of players. With large accessory compartment and shoulder rest strap and detachable matching blanking. Waterproof canvas exterior with leather handle, luggage grade lock and full-size music storage music pocket, shoulder or backpack straps and subway handle.