This vintage print ad features a unique invention by Lisle Corp. called the Mag Plug, also known as the Magnetized Drain Plug. It was originally produced and used for automobiles. The ad showcases how the Mag Plug can help prevent engine damage by attracting and removing metal particles from the oil. This original print ad is a great addition to any advertising or automobile collectibles collection. It's a rare find that showcases an innovative product from the past. Don't miss out on owning a piece of automotive history with the Mag Plug ad from Lisle Corp.