Opal Mints were plain white coloured chewy spearmint flavoured sweets, launched as a sister product to Opal Fruits (now known as Starburst). The product was then relaunched as Pacers. Later, three diagonal green stripes were added to the sweet. The brand was discontinued in the 1980s. At one point the Glasgow Celtic football team were nicknamed "The Pacers" because of the similarity of their kit to the sweets.