Adjustable knob clip: height adjustable, for flexible setting according to needs, suitable for different desk types and equipment Without drilling design: With quick installation function, without drilling is required to avoid wall damage and easily fix under the table Durability: metal, ensuring long-term use, both beautiful and practical Multifunctionality: Not only can it be used to hanging headphones, but it can also be used for backpacks, kettles, and other items to help keep the space tidy Multi scenario applicability: Suitable for various places such as homes, study, classrooms and more, making space utilization more efficient