New Releases

• Download Customer Instructions (2015):

Work with Shopping lists   Title: Work with shopping lists (Click on the icon)

• Advent calendar (2017) stringsandboxes ®

• New! Product galleries (2018):

Bellows Corner Sizes

Treble/Bass Pallet Size

Overview Treble and Bass Gauzes

Overview Treble Buttons

Overview Bass Buttons

Overview Valves Types and Sizes

• New Customer Service! Felt-Punching-Service (2019):


• New Customer Service! Bellows order form (2019):


• Advent calendar (2019) stringsandboxes ®