Length n Lock Hair Stretcher: The Length-n-Lock is a device designed to preserve the length of your curls/coils while they dry, so you can enjoy an elongated look whenever you prefer.Package Material: The Length-n-Lock features a breathable and High-quality materials that is gentle on hair and facilitates natural airflow. The horizontal ends contain a flexible material, making it easy to wrap around sections of hair that vary in thickness ength: The ends of each unit are designed to roll up, accommodating a range of hair lengths Hair types: The Length-n-Lock is primarily designed for individuals with type 3 and 4 (3b-4c) hair. While it can also be used on hair with looser curl/wave textures, it's important to note that the outcomes may differ Precision hooks: A row of hooks on one vertical side are designed to seamlessly latch onto the holes in the mesh, offering adjustable tightness for a personalized fit Material: plastic colour: Black Package Contents: 2pcs x 7inch hair net for curly hair 2pcs x 13inch hair net for curly hair Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.