This website provided a crucial tool for institutions in the field of science communication interested in renting, hiring, buying, selling, lending and loaning science exhibitions. And not only exhibitions - the tailor-made database contains dossiers on collections, hands-on, specimens, objects, models, exhibits, images, films, audio and science shows. We used the term item which can be anything scientific, cultural and museological to be loaned, rented or purchased. They were uploaded to Extra by organisations across Europe.