Cosmos &reg; Black Color Heavy Duty Metallic Headphone Desk Hanger Holder Durable and strong, capable of holding light weight to very heavy headphones without bending or breaking. No glue, no mess, adjustable design allowing to fit on to desks and tables of different thickness. About 7.5 cm straight extension for holding your headphone. About 3.5 cm of maximum clamp opening size for different thickness of desk and table Made of Metal with black color coated finish.