This is a car sticker with Israel flag on it.

"Blue and white forever" its a sentence that came to describe proud and encouragement in hard times in Israel history.

The flag of Israel was adopted on October 28, 1948, five months after the country's establishment. It depicts a blue Star of David on a white background, between two horizontal blue stripes.

The flag was designed for the Zionist Movement in 1891. The basic design recalls the Tallit, the Jewish prayer shawl, which is white with blue stripes. The hexagram in the centre is the Magen David ("shield of David"). It became a Jewish symbol starting in late medieval Prague, and was adopted by the First Zionist Congress in 1897.