A lot of well known patchwork blocks patterns consist of squares and triangles (half square and quarter square. The template sets A and B by Marti Michell are based on this: they contain squares and triangles, with which you can made a enormous array of blocks. The templates are made of the same acrylic material as quilt rulers, so they can be used with a rotary cutter. First, strips are cut of the right width, and then the templates are positioned on the strips, to make the second cut. Each template has double blunt corners for perfect alignment. The blocks go together past, easy and perfect!
Template set, Q, has 3 parts (1 squares and 2 triangles). The finished size of the square is 2,5 inch. It contains a booklet of 28 pages, explaining the use of the templates and giving a lot of blocks that you can make with this template set.