Safety Material The interior of our Helunsi twist cloth covered wire is made of high-purity copper covered with anti-oxidation tin, and the exterior of the PVC insulation layer has strong insulation and heat resistance. The interior wires are UL recognized and the exterior woven rayon cloth covering is aesthetic and retro, ensuring safety and reliability, and prolonging its service life. Specification Length: 32.8ft (10 meters). Color: Brown. Copper conductor cross section area: 2 conductor 18 gauge wire (2 x 0.824mm²). Rated voltage: 300V. Cloth cover outer diameter: 0.25in (7mm). Helunsi twisted lamp cord meets north american low power electrical standards. Please see the second picture to determine the color and size you need to buy.