Practical Art Fusible Flats: Boy, Dog, and Clothes panels. Fusible panels of printed interfacing to make adorable, flat (approx. 11") dolls with interchangeable features. Five 12" x 18" printed, fusible interfacing panels per pack - 2 Boy & Dog, and 3 Clothes panels. If this is your first time making Fusible Flats, we recommend to purchase the Fusible Flats Fun Pack first, complete with colorful detailed instructions and interfacing.