This is meant to be purchased in addition to any of our 3D-printed boxes if you would like a custom inlay lid.Lid Inlay Designs are images we are able to print on the top layer of your lid. The limitations of this are that the image cannot have shading, it must be a vector (SVG) image with crisp edges. Depending on the printer we use (which depends on the box size that is purchased), we are able to reliably accommodate lid requests that contain 2 to 8 colors. Please inquire if your desired lid design includes more than 8 colors as we do not mind manually swapping out filaments if we are able to. This process becomes increasingly difficult the more colors that are added but do not hesitate to reach out about your request; if we are able to print it we certainly will. Please note that there are limitations when it comes to generating artwork for 3D-printing so an image/pattern that you provide us is preferred. Nonetheless, feel free to inquire about a design that needs a printable image to be created by us if an SVG cannot be provided as we do support Custom Lid Design requests.Feel free to message us to specify what general colors you would like or more specifically a URL of the filament you would like if applicable. Disclaimer: The last four example photos are from when we first started doing inlays manually before automatic multicolor printing was a feature in 3D-printing. We provided these photos for you to see design examples but we've come a long way so please excuse the quality; our inlayed lids are printing much nicer nowadays :]If you have any questions or requests, please do not hesitate to reach out!