Designed for the installation of Ethernet cables, coaxial cables, fiber optic cables, and other low-voltage signal wires Made from a composite material combining nylon and fiberglass for a robust yet lightweight pulley The base can rotate, allowing it to adapt easily to various environments The design facilitates smooth and efficient cable routing, reducing friction and potential cable damage during installation Each Weighs 7.4 oz，ID 2-3/8" Lightweight Cable Pulling Pulley for Cable Tray Installation of Ethernet, Coaxial, Fiber Optic, and Low-Voltage Signal Cables (2-Pack)