The Pocket Handwarmer is no gimmicky new-fangled device. For those in the know hunters, golfers and hillwalkers it has been an essential part of their outdoor kit for decades.

To use the handwarmer, you light a supplied piece of charcoal, place it within the box, snap the lid shut, and away you go armed with the equivalent of a hotwater bottle for your fingers.

A well kept secret among a select few, it will steady your aim, lower your handicap and protect against frostbite.

The device comes in a velvet box. Who says new technology is always best?

The Shakespeare solid fuel Pocket Handwarmer costs £4.75 and is available from Patrick Cleere on Bedford Row, Dublin 2, and all good angling/shooting stores.