Good Quality Tin-Plated Copper Wires, Flexible and Thick Silicone Insulation:Great wires, true copper conductor (tin plated). 20AWG tinned copper wire are consist of 100 strands of 0.08 mm tiny lines which twined together, which makes it very flexible. Silicone insulation is greattemperature range is -60°C to 200°C, which has extremely high toughness, is not easy to break, and effectively prevents short circuits or open circuits.does not burn or shrink when touched by soldering iron. A Sweet Dispenser Box, Variety of Colours Electrical Wires:This Hook up Stranded Wire Kit contains 6 volume spools copper wire of different colors (Black, Red, Yellow, Green, Blue, White), which are perfect for color coding your circuit wires.Very cute little dispenser box. You need to do a little bit of assembly (poking each color of wire through its hole in the front of the box), but once assembled you have a neat tidy dispenser with a very small footprint. Good assortment Good wi