This hand-held, compact viewer/flashlight allows you to see inside dark and confined wall cavities, pipes or ceilings through any 2" access hole. This tool offers ease of use and versatility for a very reasonable price. The tough Wall-Eye housing incorporates a built in mirror and powerful light that provides a clear field of view 90 degrees from your eye. Use this tool to see obstacles inside walls such as fire blocks, top or bottom plates, conduit, plumbing, existing wire, studs and debris before you commit to drilling your retrofit wire path.