Oxford/Oxbridge AFN End Cap 10 mm x 5 mm tp 12 mm x10 mm The end caps are a circular disk with a small threaded shaft to be screwed to the distal end of the Nail.
There is a material mislabeling of the AFN End Cap.
US distribution to MD, NY & PA
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-2780-2017