These Chenille Letter Patches can be applied to denim, 100% cotton, and polyester/cotton blends on light and dark colored garments. They can be applied to robes, hats, bags, t-shirts, sweatshirts and so much more! Size (Approx) : 3.25 inches Tall and 4.25 inches Wide Backing: Iron On The patches can be applied with an iron or a heat press.