Wholesale Prices in Price Matrix, You get 25 assorted cats eye worry stone hearts per package bursting with brilliant colors. The cats eye worry stones are made from fiber optic glass. They have been shaped, smoothed and polished. The worry stone purpose is for stress relief. Drop one in your pocket and rub it between your thumb and index finger. The power of the stone is said to take your worries away. Size 1" x 1" x 1" thick. Makes a great craft item.