I am trying to figure out how to send long items - fishing rods - within the UK. None of the eBay defined couriers seem to offer a service from parcels longer than 120cm. My parcels would be 190cm, long tubes, weighing about 2kg.
When you click on Sell put fishing rod in the title and you get the selling form for the Sporting Goods > Fishing category. Scroll down to Postage and you should see Oversize under the heading Package Size. Then you can select any courier, not just ebay ones. Try Parcelforce or if you're stuck check out Shiply.