This is a topper that can be attached to an Expo Marker. This will extend the reach and allow a hard-working teacher to reach that hard-to-reach area. Prints in place, vertical. Starts to shift but makes it to the top. I held mine in position the last few layers.
Note: Assure the seal is snug and there are no holes in the top to prevent marker drying out. Markers can dry out.
The author marked this model as their own original creation.