It is made of soft vinylite plastic, fits into the outer ear with flanges both inside and out, to seal off air waves and hold it in place.
This week the Library of Congress, a new entry in the record market, was selling, as fast as they could be processed, five unbreakable vinylite albums ($6 and $7 each) of Lomax .
Only one big novelty in record manufacturing was contemplated for postwar production: a new disc made from vinylite or other plastic, which will be 1) lighter in weight, 2 .