Korda NEW Carp Fishing N Trap Semi Stiff Silt Braided Hooklink 20m. It is available in Weed Green, Silt and Gravel and in 15lb, 20lb and 30lb versions, to cover all UK and Worldwide situations. The second addition to the N-Trap range is slightly stiffer than the N-Trap Soft that has been so popular since its release.