A technique that originated in Holland.
Colour co-ordinated strips of folded paper are taped/glued into place over a pattern, creating a spiralling design that resembles the iris of an eye or camera.
Originally, Dutch crafters would cut their strips from envelopes with patterned interiors, but now it is common to use lightweight papers including those used for origami to create iris folded designs
The basic supplies you need to get started are minimal, and mostly made up of items paper crafters have in their cupboards: cardstock, lightweight papers, a paper trimmer or ruler, scissors, tape, and a pattern.