Flexible plastic material Two blue plastic flags (?) with “U” and Two red ones with Bulls.
Can anyone identify the set these plastic flags belong to? They are mixed in with several old castle sets
Welcome to Bricks.SE! I appreciate you including high quality images in your post to make the identification easier. Just as a heads up, I did remove your "thank you" comment, as it was posted on your question rather than the answer as you likely intended.– jncraton ♦Feb 14 at 14:04
they come from the old Ninja sub-theme
one of each appears in 4805: Ninja Knights