Specification: UL listed, 8 Colors of Solid Core Wire 24 AWG, 40 Feet/12M Each Spool (red, black, green, white, yellow, blue, salmon, stripe) also packed both of 2.0mm HEAT SHRINK TUBINGS (2pcs * 8colors = 16pcs total) Durable Material: Made with solid tinned copper conductor and PVC jacket. Insulation layer thickness0.38mm~0.47mm. Rated temperature of 80 degrees. No odor. Meets VW-1 and FT1 standards Easy to use: Easily cut, strip, bend, and solder for hassle-free use in your projects Convenient packaging: The wire comes in a dispenser box with a window to monitor remaining wire Versatile: Perfect for LED lighting, batteries, and prototyping circuits. Also ideal for breadboard hookup wires