New Mychron 5 3d printed cases. These will work on any application that uses a Aim Mychron 5. It uses 4 allen head screws to hold the Mychron 5 into the case. Due to the nature of 3d printed parts, there may be some small imperfections in them. If you are looking for a custom color feel free to shoot me a message. Thanks for looking and have a great day.