In short, this is a socket protector for the Atari 2600. Socket this into the cartridge slot and mitigate future wear and tear on your 40+ year old pins. Shipping is included. Limited stock for this run. Demohttps://youtu.be/98XDDl0ttxM Working with 7800 (2600 games only)https://youtu.be/9T40fk3PVm8 How to installhttps://youtu.be/da0e8F4Z8cI This is designed and tested with the light sixer and vader 2600s. If you have a Gemini let me know as I do have an updated version that handles this systems differences. If you have questions about the 2600(s) you intend to use this with not mentioned, contact me to confirm. I’m hoping to have some feedback from other owners of the product to offer a comprehensive list of items and ideally iterate to accommodate them all in time. NOTE: PAL region carts are a bit thicker I have just learned from a customer. So just keep in mind this is designed to be used while inserted in a 2600 which reinforces the MCP enclosure. NOTE: This works with the 7800 but ONLY works with 2600 games. Your 7800 games will not work with this MCP. However, fear not my Atari 7800 fans! I am making a 7800 version in the coming month or so.