1STec 5m of Genuine BT CW1308 4 Core 2 Twisted Pair Telephone or FTTC Broadband Extension Wire + 4 Grommets + IDC Insertion Tool + 4mm Clips + Printed Colour Code Instructions (5 Metre, Black)

GENUINE SOLID COPPER CONDUCTORS - Features 0.5mm diameter pure copper cores delivering superior conductivity compared to copper-clad aluminum or steel alternatives, ensuring strong signal transmission across extended runs without degradation or interference

BROADBAND PERFORMANCE OPTIMIZATION - Maintains full ADSL and VDSL internet speeds on lengthy installations through low electrical resistance and capacitance characteristics, preventing the 20-40% speed reduction common with inferior wire construction

PERMANENT INSTALLATION DURABILITY - The black PVC weatherproof sheath protects internal pairs for 25-30 year lifespan in damp environments, walls, floors, or outdoor routing to outbuildings without corrosion issues affecting connectivity reliability

PROFESSIONAL GRADE SPECIFICATION - Identical construction to BT engineer-installed telecommunications wiring, compatible with master sockets, junction boxes, extension points, and standard IDC terminal connectors throughout residential properties

SIGNAL CLARITY MAINTENANCE - Eliminates crackling, dropouts, and line noise on voice calls across distances exceeding 10 meters where copper-clad alternatives fail, making it essential for multi-room extension socket networks

FLEXIBLE ROUTING CAPABILITY - Blue and white-blue color-coded pairs bend easily through cavity walls, underfloor spaces, and tight corners without kinking, while remaining rigid enough for professional-looking surface mounting or conduit threading

RETROFIT AND NEW BUILD SUITABILITY - Works seamlessly with existing telephone infrastructure, garden office connections, workshop extensions, and complete home rewiring projects requiring dependable landline and broadband service transmission