Patent-pending Torque Guard construction • Main conductor: α (Alpha) Pure Copper conductor Rhodium or 24k Gold plated • Housing: Carbon fiber, nonmagnetic stainless, eutectic copper alloy • Nylon (red/white) and Polycarbonate (clear) insulation • Connections: Soldered or set-screw • Specified for core diameters up to 4.5mm Model FT-808 (long for speaker) Dimensions: Housing: 25.0ψ x 30.2mm (L) x 37.4mm overall height Insulation: Polycarbonate (Clear) 19.3ψ x 7.3mm(H), Total overall length: 85.1 mm approx. Model FT-818 (short for amp): Housing: 18.8ψ x 22.7mm (H) overall height Insulation: Polycarbonate (Clear) 19.1ψ± 0.2mm x 7.2mm(H), Total overall length: 52.1 mm approx.