A Florida man allegedly used zip-ties to restrain three young children as punishment for fighting – discipline so severe that marks were still visible on their wrists some 11 hours later, police said.

John Robert Betz IV, 44, of Hudson, was arrested Sunday after three children – ages 4, 5 and 7 – told deputies from the Pasco County Sheriff’s Office that he zip-tied their hands behind their backs and around their ankles tight enough to leave bruising, WTSP reports.

Betz, who admitted to investigators that he zip-tied all three children, also confessed to putting tape on one child’s mouth.

Betz was charged with one felony count of child abuse and remains jailed at the Pasco County Jail, where he’s being held on $5,000 bail, according to jail records.