It's the third annual A Pint For Kim Blood Drive.
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The event is named in honor of Kim Sandford, a Naperville mother who died of cancer. She needed more than 40 transfusions during her battle.
The blood drive is her family's way of giving back.
RELATED: 'A Pint for Kim' memorial blood drive honors Naperville woman, aims to help others
'A Pint for Kim' memorial blood drive honors Naperville woman, aims to help others
The blood drive is Saturday, May 7 at the J.A. Air Center at Aurora Airport. There will also be food trucks, a luxury car show, raffles and more.
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You can find more information, and sign up to donate, here.