Personalise the front and back of these gloss flat format cards with unique messages to make stylish announcements and invitations for any occasion. Set of 20 flat cards with 300gsm writeable cardstock with gloss finish. Add a personal touch with a handwritten note on the back. Rounded corners complement your writable cardstock option to give it that timeless classic touch. 20 white envelopes included 8.66×6.14″ (22×15.6cm), 100gsm paper, flat cards measure 8×6″ (20x15cm).