This cable pulling aid is designed for easy installation of low-voltage and network cables. Made from tough 45 steel, it features a smooth roller bearing bracket and can support up to 20 CAT6 network cables. The device has a sturdy bracket design with a tight tolerance to prevent cables from getting caught or skipping over the pulley edge. It also has a robust spring clamp design for secure attachment to junction boxes. The cable puller is easy to assemble and disassemble, making it a convenient and safe tool for electricians.