It’s something nearly all of us take for granted — the gift of seeing color. It’s something one 66-year-old man in Lakeland, Florida, had never known. Until his children stepped in — and gave him an incredible experience.

When one of his sons discovered EnChroma glasses, the family decided to give him a pair for his birthday in December 2016. And when he first tried them on, he was overwhelmed with emotion as shades of gray became a vibrant rainbow of color.

His family gathered around and watched as the awestruck rock of the family, sitting outdoors, took in the world of color he’d been missing all his life. Barely able to keep himself together, the father and grandfather thanked his children for the birthday gift that is guaranteed to keep on giving. Check out the heartwarming video:

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Founded in 2010 by Don McPherson, a Ph.D in glass science (Alfred University), and Andrew Schmeder, who specialized in several fields including mathematics, computer-model simulation and perceptual psychology, the California-based EnChroma, Inc., released its first consumer eyeglass product in 2012. That was “followed by innovations in creating lightweight plastic lenses, prescription lenses, and broad acceptance by professional eye care communities in 2014,” as the company explains on its website.

“The story does not end there, however … EnChroma is continuously committed to researching and developing more effective, safer and useful products that will help the color blind see the world differently, by giving them the gift of color.”

And here’s another video — of a boy seeing colors he had never seen before:

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One in 12 men (8 percent), and one in 200 women (.05 percent), are color blind — an estimated 300 million worldwide, according to the company. EnChroma glasses contain a “proprietary spectral filtering technology” to help people with red-green color blindness see an enriched spectrum of color — without compromising color accuracy or balance, the company said in a press release. Earlier this year, the company received the 2016 Tibbetts Award from the U.S. Small Business Administration for its “exemplary innovative spirit and economic achievements” in developing its special glasses for the color blind.