These brightly coloured 30th birthday party invitations are in packs of 20 sheets and envelopes. They are 19 cm tall and 13.5 cm wide ( 7 1/2 inches x 5 1/4 inches). The design includes stars around the edges in various colours with brightly coloured 30th printed in circles. The invitation details are printed on the front, and include on, time and place. These invites are folded to fit into their envelopes.