Katy Perry - Music Poster (Prism) (Size: 24" x 36") (Poster & Poster Strip Set) (By POSTER STOP ONLINE) Poster & Poster Strips Set Size: 24" x 36" (Poster sizes may vary by up to 1 inch in height and/ or width) Each Set consists of 1 Poster and 4 Tesa Poster Strips Ships in sturdy cardboard tube