At 47 centimetres, eight-year-old Ruby Miller's hair could give Rapunzel's a run for its money.
But on Wednesday, March 13, she'll be saying goodbye to all of it.
Ruby is participating in this year's World's Greatest Shave, raising money for leukemia, and donating her hair to be used as a wig for children with blood cancer.
She's aiming to raise $2000, with over $1250 already in the bag.
And she's taking a pragmatic approach to losing her locks.
"I'm very excited, because my hair can be annoying at times," Ruby said.
"It can get knotty, and I can get very frustrated - and it'll be one less job to do before school."
She might think losing her hair is no big deal, but mum Ursula Miller is "very proud."
"My heart's in my throat," she said.
"My husband's going to shave his head as well, to support her, and I did it 13 years ago and she's seen photos of that.
"It's her thing - she's very keen."
The Millers have lost family and friends to cancer, and a close friend of Ursula's recently died of leukemia.
In Australia, leukemia claims a life once every two hours.
Ruby's World's Greatest Shave will take place at Evandale Primary School - donations can be made through worldsgreatestshave.com by clicking 'Sponsor' and entering Ruby Miller's name.