The widest bore of the Kildare model whistles. Available only in the keys of low D-flat/C-sharp and low C-natural.
Due to their very large size, these whistles are available only with three finger-hole keys (Susato calls these "Comfort Keys"), two for the top hand (index and ring fingers) and one for the bottom hand (ring finger). These keys make it more comfortable to reach and cover certain finger holes on the larger whistles. You can see some comfort keys installed on the seven left-most whistle in the photo on this page.
When ordering an extra whistle body, please specify the pitch desired when you are asked to "Add Comments About Your Order".