Impossible PRD2789 Color Film for Impossible Cameras (Color) 8 exposures per pack - Finish: Glossy Type: Color instant film for Impossible Instant Lab & Cameras Format: 3.5 x 4.2 in (8.8 x 10.7 cm) / Image area: 3.1 x 3.1 in (7.9 x 7.9 cm) No built in battery, does not work in Polaroid cameras Development: 30 minutes approximately at 70F (21C)