The wife of daredevil Nik Wallenda dangled over Niagara Falls, by her teeth, Thursday afternoon. Erendira Wallenda was 300 feet above the waterfalls in a performance to commemorate the fifth anniversary of her husband’s famous tightrope walk over the landmark. The wild ride lasted eight minutes and Inside Edition was there as Erendira prepared for the stunt. She showed the specially designed mouth piece she used to hang on by her teeth. “My dentist made this for us,” she said.