Lay flat and relax with the new TELETIES Jet Black Large Flat Square Hair Clip in Black. This hair clip is designed to allow you to lay back flat, do yoga, or sit comfortably in a seat with a headrest, and it is made with the same material that is nearly unbreakable. • Flat back profile helps you stay comfortable when you lay back or lay flat against car seats, couches, and pillows • Bendable teeth for a secure yet gentle hold • Lightweight, durable, and hair-friendly • Perfect for all-day wear—from sunup to sundown • The large size is great for thick hair. Medium clips are great for thick to medium thickness of hair. The medium size is 3.6 inches long.