Take either the left or right turn shown. You cannot continue straight on where the instruction applies.
The common design is a blue circle with a white arrow branching left and right. Poland uses C-8 for this instruction.
You must turn left or right.
Take either the left or right turn shown. You cannot continue straight on where the instruction applies.
The common design is a blue circle with a white arrow branching left and right. Poland uses C-8 for this instruction.
Official sign in each country; the code is its number in the national rules. Signs that come in two directions show the left and the right version.

Sign images from Wikimedia Commons, used under their licences.