With a coat of primer on first, it was actually incredibly easy to roll on the green paint. (amidstthechaos.ca)
Then you need to cover it in a coat of primer for oil paint. (thelesliestyle.com)
I really like the look of the handles being more of a texture, not a standout color, so I decided to also spray a coat of primer on those. (armchairdecoratorblog.com)