I used to pinch my dad’s and use it to oil my bike, you just pressed the bottom and it made a “pop” sound and a drop of oil came out, you could accurately put a spot of oil where it was needed, not like today's pressurised cans of oil which seem to spray oil out and where most of it is wasted, I think these little cans were more environmentally friendly than today’s spray oil cans, but what do the Foggy folk think
) Sold here - 
