Education trends come and go: Mandatory pledges of allegiance, the new math, forcing left-handed children to write with the right hand.

And then there is the classroom chair. In New York City public schools, a top chair of choice since the mid-1990s has been the Model 114, also known as the “super stacker,” 15 pounds of steel, sawdust and resin that comes in 22 colors and has a basic, unyielding design little changed from its wooden forebears.

“They don’t die,” said Ali Salehi, the senior vice president for engineering and operations for Columbia Manufacturing, a 135-year-old company in Westfield, Mass., that makes the super stacker. “They just don’t die.”

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