3 different sizes of Valentines Day appliques included in this pattern.
Make with any yarn or thread.
The samples were made with an 5.50 mm hook. They measure:

Small Heart 10 inches across, and 8 inches long

Medium Hear 15 inches across and 10 inches long

Large Heart 18 inches across, and 14 inches long

Pictures of many of the rows. American Crochet terms