Bóton Redondo 2.54cm chrysanthemum petals badge

A continuous pattern in which diamond shapes formed by intersecting parallel lines in two directions are arranged regularly. These are patterns that have been seen since ancient times, such as the ground patterns on Jomon pottery and textiles from the Asuka-Nara period, such as ``Neriko-bishi'', which is double and triple-layered, and ``Hanabishi'', which combines flowers in a rhombus shape. There are many variations, such as the ``waribishi'' made by hand, and it was often used in family crests. Water chestnuts have strong fertility, so they are associated with the prosperity of descendants and good health.