Twister marbles have an opaque black base with swirls of red and yellow glass on the surface of each marble. Super jumbos are approximately 42mm or 1 5/8" in diameter. Sizes may vary slightly.
Moon Marble Company 600 East Front Street, Bonner Springs, Kansas, USA 66012-1122 Phone: 913-441-1432 Order Only: 888-410-0680 Fax: 913-441-1024 Email: email@moonmarble.com