Listings >> Regionalbibliothek Langnau i.E. We are a regional library in the Emmental Valley (Switzerland). Together with volunteers, we sewed around 80 bags, which can be borrowed from the library. We hope that other libraries from our region will participate in this great thing and that the Boomerang Bags will soon be widespread in our area. Dorfstrasse 22 Langnau im Emmental 3550 BE CH Get directions Contact this Community You may wish to contact this community to join, or with questions for donations of material. This is the place to get in touch with the community on this page. Your name Your email Please leave this field empty. 45230 *note: this form isn’t for general enquiries to Boomerang Bags HQ. For general questions, contact us on the main contact page.