Australia’s new $5 dollar note is out, and its most exciting feature is one you can barely see.

The new notes will replace the 170 million $5 bills in current circulation with a fresh new design and enhanced security features, like a top to bottom window and a number of different holograms.

The note also features a different species of Australian wattle — the Prickly Moses — and a native bird, the Eastern Spinebill.

But the biggest change is a single bump on both of the long sides of the note, which makes it easier to identify for about 360,000 Australians who are blind or have low vision.

The bumps – which will be included in new notes for other denominations in the future – are a personal victory for Sydney teenager Connor McLeod, who was born blind.

Connor was inspired to change the face of Australian money when he received some bank notes for Christmas, but had to ask his mum how much it was.

Connor and his mum started a Change.org petition calling for tactile features to be included on Australian bank notes, earning more than 57,000 signatures.

When the Reserve Bank brushed off the petition, Connor got serious, enlisting the help of a legal firm (pro bono) to lobby MPs and even take the case to the Human Rights Commission, with Vision Australia as the secondary complainant.

In February 2015, the Reserve Bank included Connor’s idea in their new plans, flying him to Melbourne to tour its note-printing facility.

“I'm stoked,” Connor told reporters this week.

“It's good to feel that what I did is going to help me later and everyone else as well. It's more independence … I could even get a beginner job because a lot of them involve cash handling.”

The video below shows off the new features.