DIY Backdrop Magic. Party Backdrop - Dazzling in Pink - Circle - 80 x 170 cm. Contains: 8 streamers with 18 circles each. You can use this article for the following party occasion(s): Birthday, Theme Parties. This party curtain consists of 8 streamers, each with 18 circles with a diameter of 7.5 cm. Hang them exactly as you want. If you hang them next to each other, it creates a backdrop of 170 x 80 cm. There are 3 colours on a streamer: dark pink, pink, iridescent. This item is made of foil and paper.