Can you give me the brief term of use of using materials that we can download in this service?

This service is only for use as a source of material for presentations.
Use of downloaded icons and images on web pages, banners, etc. are strictly prohibited.
Examples of prohibited uses
Web: homepages/banners/advertisements/wallpapers
Print: posters/leaflets/signage/shirts/mugs, etc.

For more detail, check the "Term of use" carefully.