"She has physio and sees an occupational therapist twice a week," her mum Rochelle says.
"Avery can crawl because her quads work. She'll choose to crawl around the home, but when we're out and about she'll be in her chair. She has a walking frame but to use it she needs to wear her ankle-foot orthotic, which replaces her calf muscle and gives her lower-leg stability."
To reach her goal of walking unassisted, Avery needs to retrain her brain to speak to her hamstring and calves.
"There's things she can do to build new pathways, so she gets movement back," Rochelle says. "She needs to be doing things for the brain to learn how to create new pathways."
One of those things is climbing. Rochelle's partner Jonathan gave up his job to care for Avery, who is now 4. Because of that, they don't have the money to buy expensive equipment like a climbing frame and scramble net.
Hell Pizza's Satan's Little Helper has donated these items. As well as the physical benefits, the climbing frame lets her play with her siblings – something that has been restricted since her accident.
"Having a climbing frame is a pretty big step forward in her recovery," Rochelle says. "It will get her calves and hamstring firing up. For that to happen, she needs to be doing something regularly to use those muscles and climbing will help massively.
"Avery's loving it. It's nice to see her and her siblings play together. Before her accident, she used to love running around with them and she always wants to play with them."