Round hand is a type of handwriting and calligraphy originating in England in the 1660s primarily by the writing masters John Ayres and William Banson. Characterised by an open flowing hand (style) and subtle contrast of thick and thin strokes deriving from metal pointed nibs in which the flexibility of the metal allows the left and right halves of the point to spread apart under light pressure and then spring back together, the popularity of round hand grew rapidly, becoming codified as a standard, through the publication of printed writing manuals.