Dublin models have a cylindrical bore and are lower in price than the tapered bore Kildare models. The -L- and -M- series models are two-piece and tunable. Keys on low -C- to low -G- whistles make a big difference in playability.
A thumbrest and a fingering chart are included in the price.
If you are just starting out we would suggest an -S- Series Oriole whistle
with the 'Companions Five'
instruction book. Also check out our page for Pennywhistle Music & Methods