In reply to Lawers99:
This is surely an error down to poor wording, as elsewhere they list some of the 'Dangerous goods' as Sporting Equipment, that can be carried in your hold baggage
http://www.easyjet.com/en/sports-equipment.
I don't think the many thousands of skiers who travel each year with Easyjet would be too impressed if they paid the £60 ski carriage and they didn't then allow you to take poles!
You certainly wouldn't be able to take the items you mention in your cabin baggage, but in the hold it shouldn't be a problem. Easyjet don't check what is in your hold baggage anyway, only whether it complies with their weight and size restrictions. It's the airport security scanners which check the contents, so you just need to ensure you comply with the restrictions imposed by the airport.
Post edited at 13:30