The zoom spout oiler’s tube is longer than it looks – you can pull it out, that’s why it’s called zoom oiler. That’s what you need to get it into tight spots. And the average tinkerer or home consumer doesn’t need more than 1 or two of these little oilers, so vendor sites online elsewhere are often less suitable because they only sell in lots …
https://www.amazon.com/Norvey-Zoom-Spout-Lubricating-Oil-ZS75A/dp/B000HACY3Y