They were similar to these, except both sides were flat.
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.amazon.com/Weber-6650-Original-Sausage-Tongs/dp/B005LR3SA6&ved=2ahUKEwjeut7ijdf0AhUooXIEHQjCCEAQFnoECAcQAQ&usg=AOvVaw0P3qRv0F6uTLjR65P0aItY