This is a slider designed for slatted frames to adjust their hardness.
Please refer to the dimensions below and check if it matches your type.
Recommended print settings:
Atleast three wall loops and high infill.
I did print it with TPU 95A(highly recommended! Did try PETG while it works it has no give) with a volumentric speed of 1.5mm³/s, three wall loops and 100% aligned linear infill and so far its holding up.

The author marked this model as their own original creation.