For use with ratrig toolhead beta version on the vcore 3 printers. Second version for if you add an orbiter filiment runout sensor. Cannot use standard version with orbiter sensor but you could probably use the orbiter version if you add some spacers on the back side. Brass inserts for mounting board to print. M3x16 to attach print to toolhead. m3x20 to attach brass extension through the filiment rounout sensor. Wont need these if you are using the standard version. Might not be necessary, but it's better to attach it this way but it adds strength incase things get pulled on. You could just bolt the bottom if you want. m3x10 for attaching board to print. Really just about any length is ok for print to brass extensions. Based off of attaching to orbiter runout sensor version.