Size is as-packaged, or the diameter of loose marbles. ("D" is the diameter of round items other than marbles.)
!Our popular Jolly Roger marble, printed on a "Black Pearl," which offers an iridescent play of color on the surface, like an oil slick on a puddle! This popular design is a landofmarbles.com exclusive - it's the classic pirate flag, also known as the "Jolly Roger." It features a skull and crossed bones on a field of black. The design is a glass decal permanently fired into the black glass marble - it will never rub off!