The mother of the wrongly accused man even thought a photo of the robbery suspect she saw on television was a photo of her son.
Conrad Zdzierak, 30, pleaded guilty Monday in Hamilton County Ohio to one count of aggravated robbery and five counts of robbery in a plea deal with prosecutors.
Conrad Zdzierak targeted four banks and a chemist within the space of three hours wearing the mask
An unnamed black man's mother saw a surveillance video picture like this one on television and believed the robber was her son
The silicone mask, purchased from a California costume company, behaves like real flesh and muscle
He faces up to 35 years in prison at his January 7 sentencing.
In exchange, prosecutors dismissed 12 charges and decided not to seek indictments for other crimes, prosecutor spokeswoman Julie Wilson said.
'Conrad apologises to everyone, is sorry for any harm he has caused and accepts responsibility for his actions,' his lawyer Christopher McDowell said.
Zdzierak stole about $15,000 in the robberies of four banks, a credit union and a pharmacy that occurred in March and April - crimes in which witnesses reported that the robber was black and surveillance video appeared to show a black man.
Zdzierak's masked resemblance to the black man who was initially arrested was so similar that some witnesses even identified a photo of the black man as the one who robbed them, McDowell said.
The prosecutor's office would not release the name of the wrongly accused man.
Zdzierak was arrested at a hotel after his girlfriend called police after seeing reports of the robberies and finding two masks and money stained by dye that is used to track robbers, The Cincinnati Enquirer reported.
McDowell said his client purchased the masks from SPFX masks, based in Van Nuys, California. The silicone masks 'look and behave like real flesh and muscle,' the company's website says.
Owner Rusty Slusser said Tuesday his company's masks are normally bought for movies, Halloween, haunted houses and stage shows, but the Ohio case was not the first time they have been used for criminal purposes.
'We do not condone any illegal activity with our masks,' Slusser said.