Template set P consists of 5 acrylic templates. With these templates, you can make feathered star blocks of 27 5/8 inch with a 8,5 inch centre square. The centre square can also be replaced by a 8,5 inch block. Almost all of the blocks in Encyclopedia of Patchwork Blocks volume 1 (with set A and B) and a large number of blocks in volume 4 can be made in 8,5 inch size.