Thick and thin squares are the ideal soft surface for shaping flowers, leaves and other fondant or gum paste cutouts. Use the thin square for thinning petal edges with a ball tool, carving vein lines on leaves and making ruffled fondant strips. Use the thick square for cupping flower centers. Thin 4 x 4 x 1/8 in. Thick 4 x 4 x 1 in.