After a generous donor stepped in and offered to cover the entire £13,000 cost, a seven-year-old boy born without a right hand will now receive a "robotic arm.".
The Hero Arm prosthetic was purchased by Cambridgeshire resident Louie Morgan-Kemp through fundraising.
Billy Nixon, 73, of Surrey, who had read about the fundraiser in the news, expressed his happiness at being able to contribute.
Hannah Morgan, Louie's mother, expressed how "excited" her son was.
Open Bionics created the 3D-printed artificial limb.
Swavesey resident Louie previously remarked that it would allow him to "do stuff other children can do" and give him "more confidence.".
Following reading an article, Mr. Dixon claimed he connected with Ms. Morgan on Facebook.
The Egham grandfather, a "general dealer" who buys and sells trucks and vans, said: "I just said listen, don't worry about it, you just go and get his arm, I'll pay for it.
"Doing things like that is just in my nature, so I couldn't think of not doing it. ".
He recalled losing his sister, brother, and son all in the same year, five years prior.
"I just felt like the world was a shady place. Why can't I help someone else, he questioned, "If I keep getting all the bad things.
The 32-year-old Ms. Morgan argued that it was "mental to think someone paid that amount of money that we've never met.".
She claimed that when Louie saw the Hero Arm at a roadshow last month, he was "amazed.".
He has mentioned how nice it would be to be able to pour his own drink without spilling it and to carry things with two hands instead of having to balance them against his chest, he said.
The Hero Arm will take about 15 working days to manufacture, according to Ms. Morgan, a teaching assistant, who said Louie was scheduled for a fitting for it in early July.