The pulleys are suitable for stringing four bundled conductor lines. The wheels are made of aluminium alloy; the lateral ones are mounted on ball bearings with groove lined by a neoprene ring; the central one is mounted on double-row ball bearings with grooves made up of wear-proof interchangeable nylatron sectors. The frame is made of galvanized steel. The pulleys are supplied with fixed connection.

Grounding device or complete conductive sheaves are available upon request.