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Blue Amberol Records was the trademark name for cylinder records manufactured by Thomas A. Edison, Inc. in the US from 1912 to 1929. They replaced the 4-minute black wax Amberol cylinders introduced in 1908, which had replaced the 2-minute wax cylinders that had been the standard format since the late 1880s.[citation needed] Blue Amberols can play for as long as 4 minutes and 45 seconds[citation needed] and have a surface layer of the "indestructible" plastic celluloid, which Edison tinted a trademark blue color. Edison brand phonographs designed to play Amberol cylinders were named Amberolas.[citation needed]