Plastic tuneable whistle with thumb rest. Rich tone.
S-series: The S-series whistle has a little larger bore (diameter) than the V-series. It requires a little more air (a little more "push") than the V-series, and has more volume. It's a great whistle for a player that's a little more aggressive in their playing style, or for the player that needs to keep up with many instruments at a Session. Whistles in this range are also known as "Soprano" Whistles.