The file 'Caddy For Marker/Pen Carousel 3D Printer Model' is (stl) file type, size is 18.8KB.
This is a tool caddy for my Rotating Carousel for markers, pens, and pencils (https://www.thingiverse.com/thing:3208935). It attaches into 2 marker holes. The caddy is designed to fit 6 around the carousel.