Just as the description says. Indicator holder for Replicator 2XPrint the file as downloaded. Install indicator onto holder. Uses an M4 x 20 SHCS and a M4 nut that installs into a nut well for holding lug back indicator to holder. Clip holder on right side of extruder gantry as shown in picture. Tip:When installing holder, engage lower hook part of clip first then tilt up into position.Created with Solid Edge. PAR file is included in set.