Gamenamics Interactive Lighted Billiard Ball Set with Wood Case 16 piece Billiard Ball Set with flashing LED lights Each ball has 4 LED lights that flash for 2 seconds upon impact Professional-sized 2.25-inch balls made from acrylic and coated with a tough clear polymer finish Beautifully crafted premium wood case with liner for storage and protection Case has a 90-degree opening for show-casing these exciting billiard balls