This set of various size patterns - 3", 4", 5", 6" and 10" - first appeared on my best selling CD, Building Blocks and Borders. The Shark's Teeth blocks are a very modern looking border treatment with very sharp points that only paper piecing can achieve. I added the 10" size block for those wanting to use these in larger quilts. I've even included mirror image/reverse angles for each of the sizes. Make small blocks to border a small quilt. Make the units as the center of your quilt. The largest 10" size is an awesome way to showcase your sewing skills and is a great way to use up all those 2-1/2" scraps. The pattern assumes you have basic knowledge about paper piecing. They are accurate for print and use and you will have to determine the best size of scraps to cut for each size. BASIC SKILLS NECESSARY Basic knowledge about paper piecing SIZING / FINISHED MEASUREMENTS Multiple sizes: 3, 4, 5, 6 and 10"