Yellow "Caution" sign with wording Do Not Enter. Note that Do Not Enter signs are available in Caution, Danger, Notice, Warning (green) and Warning (orange) in this collection オフ 注意 記号 注意 - を入力しません。
A yellow caution sign where a new sign is to be created or an unknown caution is to be written in オフ 注意 記号 注意 - 空白