Parents have a lot of worries. A big one is, what if my child goes missing? Now, there’s a new device that says it can be a big help finding missing kids, even senior citizens, who wander off.

For four decades, Bob Anderson’s been training K-9s to track the scent of criminals, missing people and lost children.

“I believe it can be extremely helpful,” said Anderson, who owns the International K-9 College in West Palm Beach.

Beth Falcon bought this Scent Evidence K-9 kit for her daughter, Mia. The jar preserves your child’s unique scent for a search and rescue dog to pick up. Simply swab under the child’s arm five times, put the swab inside and attach the seal.

“God forbid somebody took them or they got lost. I think as a parent that’s one of your biggest fears,” said Falcon.

The National Center for Missing and Exploited Children reports that in 2016, more than 465,000 children were reported missing.

“Now I know whenever I’m lost I’ll have something to find me,” said Mia Falcon.

You can also put your fingerprint, picture, and dental records inside. Floridian Paul Coley, a former FBI forensic K-9 ops specialist, invented the jar after a lifetime of working missing person’s cases.

“Having a clean scent article in the beginning increases the chances of a team being successful, of a K-9 team being successful in trailing the missing person,” said Coley.

Just this month, the kit helped K-9s in Tennessee find a missing ten-year-old girl.

“It does assist us. If somebody walks up with a jar like that it’s uncontaminated, we’re ready to go. Let’s go find him,” said Anderson.

“I think this product should be in every household, especially those with children and adults that are prone to wander,” said Beth Falcon.

This jar is not just used for children. The Alzheimer’s Association estimates 60% of people with the disease will wander off. Last summer, Scent Evidence K-9 is credited with helping find a central Florida woman with dementia.