My fun and easy Cat Silhouette pattern is for cat lovers, and everyone who likes cute animals - and all kind of cuteness. It is definitely beginner friendly and you won't regret sewing it. BASIC SKILLS NECESSARY. You need to know how to foundation paper piece. Pattern includes 5 sizes of blocks, 4", 6", 8", 10" and 12". Each size has two tail options - tail on the left and on the right. Finished blocks are 4.5", 6.5", 8.5", 10.5" and 12.5". The pattern comes with ¼” seam allowance.