Rock is a
confectionery made and sold in many of the
UK's seaside holiday resorts. It is made from sugar with colouring and flavouring, and formed into sticks about 1/2 inch (12mm) in diameter and 12 inches (300mm) long. It is usually made with the name of the resort formed inside the stick, so that the name can be read on one end of the stick and remains legible even when pieces are bitten off.
All Wikipedia text
is available under the
terms of the GNU Free Documentation License