No Need to Drilling Holes - Instead of damaging to your desk, our under desk cable management tray can be hanged directly to desk frames and change its position easily as you like, unlike others screw installation. It Excellent to install a clamp on any wood, glass, or any material on your desk. Unique-designed Management - Comes with anti-scratch mats, effectively avoid the clip to scratch the desktop which compared with other wire organizer. The opening of desk wire organizer can be mounted inward or outward of your desk as required. Make you more convenient when collecting and organizing wires.