This design is done in filet crochet. There are 2 models in the book. One model is made with size 10 thread and mounted on fabric to make a potholder. The other model is made with size 20 thread and mounted in a frame with matting. The larger heart measures 9” wide x 7 1/2” high and the smaller heart measures 7 1/4” wide x 5 1/2” high.