You had me all going, "Whuhh?!?" for about four full seconds before, I looked up from the picture long enough to actually read your post. LOL
@kanga is correct, actually. "Flips" are those clear things with pockets. The cardboard holders are typically called "2x2s", as mentioned. (Except when they're in 1.5" x 1.5" size, or 2.5" x 2.5" ...)
