Polaroid has announced that it is making its 600 Film Round Frame Edition instant film available again after ceasing production back in 2015.
Creative Ideas for Polaroid Photography - 42West, Adorama
Polaroid Announces the Return of the 600 Round Frame Instant Film
Polaroid Launches Round-Frame Color 600 Film
Polaroid 600 Color Round Frames Instant Film Review - Parallax
Polaroid Introduces its Most Creative Camera Yet: Polaroid Now+
IFA 2018: Polaroid launches new OneStep+ instant camera with smartphone app - ShinyShiny
Polaroid Announces the Return of the 600 Round Frame Instant Film
A Film Friday look at Polaroid Originals 600 b&w instant film — The Codex
Polaroid 600 :: Round Frame Edition — Brooklyn Film Camera