This vintage Speedball calligraphy brush set includes a steel brush of size E 3/8th and E 1/4". The brush is made of high-quality materials and is perfect for creating beautiful calligraphy. The brush is silver in color and has a rectangular shape. It is an animal cruelty-free product and is not customized. The brush is made in the United States by Speedball Nibs. This calligraphy brush is perfect for anyone who enjoys vintage items and wants to create beautiful calligraphy. The brush is in excellent condition and has not been modified. It is an excellent addition to any calligraphy tool collection and is sure to impress.