This is the ¼ inch mono male to ¼ inch mono male inline guitar pedal coupler adapter. It features a ¼ inch mono male connector on both sides. Let’s take a brief moment to look at some audio connectors that can be hard to identify. There are 3 styles that look very similar. 2.5mm, 3.5mm, and ¼ inch. 2.5mm is the smallest and the least common. It is typically found on older android phones and GPS equipment. 3.5mm is slightly larger than 2.5mm and is the most common for day to day use. It is found on many smartphones, tablets, laptops, and computers. ¼ inch is noticeably larger and is also quite common. It is typically found on higher end headphones and music equipment. The adapter is great for creating a low profile pass through for guitar pedals. It could also be used for joining together two ¼” mono female cables to extend your run. Or as a gender changer from female to male. The ¼ inch mono male to ¼ inch mono male inline guitar pedal coupler adapter is a quick and easy solution for your audio projects. For more information on our products, you can give our customer service department a call at 888-519-9505. For all your cable and connector needs, choose Show Me Cables.