Hundreds of military explosive devices found at a California home were replicas, experts determined Friday.

Twenty homes were evacuated for nearly 24 hours after Stockton police officers found the explosives Thursday when they went to the home to check on a man who reportedly died of natural causes, police said.

The resident, 71-year-old William White Jr., was a collector of military memorabilia, Air Force Lt. Col. Glenn Cameron told KTLA sister station KTXL in Sacramento.

“The very vast majority were absolutely made to look like they were real,” said Cameron, who’s stationed at Travis Air Force Base.

An ordnance disposal team from the base was called to help deal with the devices and announced on Friday afternoon that they were non-explosive replicas.

Evacuations were lifted at about 3:30 p.m.

The team also found 25 small flares and fuses that would be removed, the station said.

“Replicas are not necessarily illegal. You just have to be making sure that you can show that it’s a replica and it’s safe,” Cameron said.

Police said White didn’t have a military background, KCRA-TV reported.