Generally, the standard paper, also known as Kami, is the best paper for use. Folding leaves lovers appreciate this paper for several reasons. First of all, the thickness of this paper helps to fold it in most of the ways possible. Besides, they are ideal for origami projects and withstand much more than a standard printer or colour craft paper. This paper varies in size from around 7.5 x 7.5 cm (3 inches) and goes all the way up to 35x35cm (14 inches) squares.