Metallic, Cotton & Polyester are three basic types of threads that are used for Aari and Zardosi hand embroidery. Metallic threads: - Those in which the yarn is either made of copper, silver or aluminum metal or the yarn is twisted or wrapped with any metallic film. In India, these are called zari threads. Cotton Threads: - These are basically natural cotton threads, very less twisted and are perfect for cross-stitch and zardosi embroidery. Anchor threads are one of the most popular brands in this category. Polyester Threads: - Most of the threads that are really shiny in embroidery are made from polyester foil. Badla threads are one example of this.To view different color option and styles of hand embroidery threads, please visit www.embroiderymaterial.com its India’s number one website in embroidery category.