The Toms company is donating $5 million and mobilizing its social network and customer base to support a unique corporate-initiated campaign to End Gun Violence Together.

The shoe company’s donation is the largest corporate contribution toward ending gun violence in the history of the U.S., Toms founder Blake Mycoskie said.

The venture, which was created less than two weeks after a deadly mass shooting at the Borderline Bar in Thousand Oaks, California, launched on Monday. Mycoskie told HuffPost that he conceived of the idea after receiving a call from his wife, Heather Lang, who was at their home near Thousand Oaks.

“She said, ‘I’m not dropping our son off at school this morning, and I don’t know if I ever will. We’re not safe. Somebody’s got to do something,’” he recalled. “It was a pretty emotional moment for us.”

The Toms funds will go to organizations working to end gun violence in the U.S. by addressing issues such as urban crime, domestic violence, mental health and suicide. Campaign partners include: Moms Demand Action, The Black and Brown Gun Violence Prevention Consortium, March for Our Lives and Giffords: Courage to Fight Gun Violence.

The new campaign also joined forces with Winter Minisee, one of the student organizers of the National School Walkout to support gun control. Minisee, 17, said activism was one way for students who were too young to vote to participate in the political process.

“It’s been frustrating for me to see politicians not take action on guns after the Parkland school shooting. But it has been inspiring to see so many people working to change things,” Minisee told HuffPost.

A key focus of the Toms campaign will be to push for universal background checks for all gun purchases. The change would require a background check every time a gun was sold, including at gun shows, online and through other direct sales that currently allow buyers to duck the process.

Toms is reaching out to its 10 million social network followers and customers to encourage them to send postcards to their local representatives and demand universal background checks. The transformed Toms website now offers a postcard template, which can be submitted directly through the site.

Mycoskie appeared on “The Tonight Show” on Monday night to unveil the campaign, and host Jimmy Fallon used the site to send the first postcard:

.@TOMS founder Blake Mycoskie announces a new campaign to end gun violence by making a record-breaking donation #EndGunViolenceTogether pic.twitter.com/pZkQJUu63j — Fallon Tonight (@FallonTonight) November 20, 2018

Mycoskie told HuffPost that Toms customers were split between the Democratic and Republican parties.

“So this is an opportunity to work together in these divisive times,” he said.

Toms was founded 12 years ago with a plan to donate a pair of shoes for each pair purchased as part of TOM’s “One for One” program. The model was later expanded to providing safe water to communities as well as prescription eyeglasses, medical vision treatment or eye surgeries for children in need.

To date, the company has donated over 86 million pairs of shoes, 600,000 weeks of safe water as well as glasses or vision treatment to 600,000 children.