UL-Certified Extension CordsThis high-quality extension cord indoor has UL certification for safety and high heat resistance. Invisible extension cord indoor thin features polarized ends to ensure compatibility with standard US outlets, making it a reliable and safe choice for your power needs. Clear Extension CordThe invisible extension cord is inconspicuous on the wall or floor. It comes with eight cable clips to help you organize the indoor extension cord, to keep your space neat and free from clutter.