1. Material: aluminum alloy 2. Applicable to: headphones with soft and hard materials and wide head beam, within 5.5 cm 3. Stable and easy to store 4. Cylindrical design does not damage the headphone beam 5. Non-slip base, no damage to the desktop 6. Disassembly and assembly design, more convenient storage 7. Size: 10.5x23x5.5 cm 8. Weight: 235 grams