Highly elastic: Ballet bun nets are easily unfolded and stretch to 19.68" / 50 cm hairnet for both short and long hair. Material: Strong and durable nylon hair bun net that won't tear easily. Lightweight and comfortable to wear without weighing down the scalp. The hair clip ends are smooth and do not damage the scalp, and the wave shape holds the hair firmly in place. Invisible: The bun net brown has ultra-fine mesh and natural color that makes it perfectly hidden on the head. Versatile: Invisible bun nets that keep hair neat and tidy at all times, suitable for air hostesses, nurses, ballet dancers, swimmers, hotel staff, catering waiters, and other professionals. Package: Contains 30pcs hair nets for buns and 20pcs U-shaped hairpins.