Wikipedia
Crispix (or Crispix Krispies in Canada) is a brand of breakfast cereal, introduced by Kellogg's in 1983. It was created specifically to compete with Ralston Purina's Chex family of cereals, which had about $125 million in annual sales and no significant competition. By 1987, Crispix had sales of about $65 million. Honey Flavored Crispix have been sold twice in the UK, and twice have they been discontinued.
Its box touts its unique composition of "Crispy rice on one side, crunchy corn on the other." The cereal itself is in a hexagon shape. The two sides are made in a lattice pattern and connected only at the edges; the center is open. Crispix is kosher/ parve.
Australia has a honey version as well as a chocolate version known as Coco Pops Chex.