I designed this replacement Elegoo Neptune 4 series display holder in case you lost yours, or you want to make one in a different color to give your printer some added flair, or you bought a printer to rebuild and it didn't come with one. This holds the display for any of the Neptune 4 series printers. This requires 19 x 1.5 mm magnets to hold the display more securely to the holder just like the ones used in the stock display holder.