You can also go to cozyquilts.com and if you sign up for their emails, you can download and print the instuctions for the strip tube block. It is a very simple, easy process. Great way to use remnants and scraps. It takes 4-2.5" strips x wof. Sew the strips into 2 strip sections. Take both sections and lay them right sides together and sew on both sides of the strips. This makes the 'tube'. Take a square template ruler that has the 45º line, put that line on the sewing line to cut. Your first cut is scrap. You will alternate cutting on both sides of the tube, ending up with 8 cuts or squares.