I bought a Tri-Recs set for a class I took at my guild's quilt college last spring. We made the 54-40 or Fight block which was very quick and easy. She also showed us pictures of several more to make using the Tri-Recs. According to my teacher who has used hers many times, the earlier version of the ruler set came with better detailed instructions, my new one did not. She had copied the ones from hers and distributed to the class, it helps a lot. There are some instructions available from the manufacturer online here:
http://www.simplicity.com/t-tutorial...lic-Tools.aspx There are a lot of others on you tube, ect. too.