Pattern, templates, and reef fabrics from Elizabeth Hartman. KITP-1764-7 Includes 10 squares and other fabrics to make the 54 x 72 inch sea urchins quilt lap size. Sea Urchins is a standard half sheet paper size booklet pattern including multiple quilt sizes and a pillow option. The pattern features my new Reef fabric collection for Robert Kaufman and Kona coordinates and uses 10 inch precut or scrap squares. It includes a template pattern, but can also be made using an 8-1/2 inch 45 degree triangle ruler.