Polo is a brand of breath mint whose defining feature is the hole in the middle. The peppermint flavoured Polo was developed by George Harris and first manufactured in the United Kingdom in 1948 at the Rowntree's Factory, York, and a range of flavours followed. The name may derive from "polar", referencing the cool, fresh taste of the mint. Polo mints are sold by Nestlé. They are usually sold in a 34-gram (1.2 oz) pack containing 23 individual mints.