Star of David Crystal Judaica Key Ring. Only the highest quality optical crystal is used for our laser cut crystal pieces. The images are totaly three dimensional. A laser, controlled by a computer,is focused inside the crystal block at a precise location creating a minute fracture. This process is repeated thousands of times untill the desired subject is formed. We will ship it with love from Israel. Express your Judaism with this great product. The Star of David is also known as Magen David or David Shield.