The product is a pack of 500 4.0mm micro rings silicon lined micro beads in dark brown, designed by the brand koconi. These silicone hair rings are suitable for all hair types and colours. The one-size cap ensures a secure and comfortable fit for hairstyling and extension purposes. Ideal for those looking to add a professional touch to their hair care and styling routine, these micro rings provide a convenient and secure way to attach hair extensions.