Marble (toy) individual artists such as Josh Simpson. Art marbles are usually around 50mm marble (a size also known as a "toe breaker"), but can vary, depending on the artist and the print. Marble (toy) A marble is a small spherical toy often made from glass, clay, steel, plastic or agate. These balls vary in size. Most commonly, they are about in diameter, but they may range from less than to over , while some art glass marbles for display purposes are over wide. Marbles can be used for a variety of games called marbles. They are often collected, both for nostalgia
Elgin Marbles that "the Greeks were guilty of excessive cleaning of the marbles before they were brought to Britain." During the international symposium on the cleaning of the marbles, organised by the British Museum in 1999, curator Ian Jenkins, deputy keeper of Greek and Roman antiquities, remarked that "The British Museum is not infallible, it is not the Pope. Its history has been a series of good intentions marred by the occasional cock-up, and the 1930s cleaning was such a cock-up". Nonetheless, he claimed that the prime cause for the damage inflicted upon the marbles was the 2000-year-long weathering on the Acropolis.