Well made item known as the, “BONG-A-LONG” in the early 80’s I am offering lots of QTY (10) of these for one price as listed. Never used and individually bagged. The stem is stainless steel (5/16 OD x 1/4 ID x 2 3/4 +/- long) with a bowl at one end and a angled point at the other end for piercing a can or plastic bottle. A brass insert at the base of the bowl has a small thru hole to allow flow. A rubber gasket is fitted around the stem that will seal to the can or bottle also. Once used the can or bottle is discarded and you pocket the unit.
These are NOS and never used. I purchased these in the 1990’s as a lot of QTY 240. Each unit is individually bagged and re bagged into lots of QTY 10. Feel free to make me an offer on the whole lot.