[No Drilling No Scratching Design]: No drilling under desk tray, and it is equipped with non-slip rubber pads to protect the desk and avoid scratches [Retractable Flexible Design]: Can extend cable rack from 11.22" to 21.65" (28.5-55 cm) depending on your needs, larger capacity than other cable desk management. Upgraded screw clip length is suitable for most desks [Thickened and Sturdy]: High-quality steel, thickened design and coating treatment, more durable and strong bearing capacity [Easy to Install]: Simple to install and easy to disassemble, just turn the screw clamp, and it can be flexibly adjusted the cable basket inward or outward according to your needs. Keep the desktop and the ground clean, no more messy wires, saving space [What You Get]: The package contains 2*black under des.