The Swarovski 2080/4 Cabochon Flat Back is a pressed rhinestone and does not have a single facet. They can be applied to flat surface by glue.
Swarovski 2080/4 Cabochon Flat Back rhinestone are made of ADVANCED CRYSTAL and are lead free and compliant with international standards.
Hot-fix version of the
Swarovski 2080/4 Cabochon Flat Back is also available, which already comes with heat-activated glue that can be applied to flat object or textile by heat such as iron.