Harlequin is a Layer Cake-friendly quilt pattern, adding in shades of solid gray fabric trailing off for a feeling of transparency and two other solids for accents to go with the layer cake prints. Half-Rectangle Triangles create diamonds that are made with the included paper template OR can be made by purchasing a separate triangle ruler (Creative Grids Kaleidoscope Ruler preferred or you can use an 8in tall triangle ruler that is 22-1/2 degrees to make a 45 degree diamonds). Size 49in x 71in wall quilt or 61in x 83in with additional borders.