will try to post pic tomorrow of it. 12 inch long tube 1/4 dia one end fits into gun or extension tube other end has approx inch long smaller piece of tube hollow but with v small hole in it angled to a point, u push point into nipple where ball bearing depresses, pump grease gun ,grease travels out of point into nipple, it was the only thing that allows u to grease rear ferret u/js with engine installed. because end is smaller makes it easier to see if grease going in where access limited.