Features: The Cable Bridge Pulley features a 65mm large opening rings designed to accommodate multiple cable types, dramatically improving efficiency for large scale construction projects like cable pulling and routing. Engineered with smooth spindle shaped rollers and a 330° adjustable clamp, this tool prevents wire abrasion while securely attaching to bridge frames' inner/outer edges or corners for multi angles flexibility. Professional electricians, construction workers, and maintenance technicians rely on this heavy duty pulley systems for commercial building installations, industrial electrical setups, and complex renovation projects. Optimized for high rise construction site , underground cable networks, and tight space electrical repairs, its widened stainless steel clamp withstands heavy loads during conduit layout or lighting fixture installations. Combining erosion resistant stainless steel brackets with wear proof nylon components, this portable cable management tool ensures years of stable service across extreme project conditions. Specifications: Component : Stainless steel, nylon Hole: about 65mm/3inch Package Includes: 1xWire Pulling or 2xWire Pulling or 5xWire Pulling note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.