- Leadcore is also available in 7m Dispenser- E-S-P Leadcore is immensely strong with a breaking strain of around 45lbs- Its high abrasion resistance makes it ideal for coping with heavy weed and snags while the special two tone weave provides excellent camouflage.- Having an extra high lead content E-S-P Leadcore ensures that the line lies unobtrusively along the bottom in the critical area closest to the bait. - To prevent your leadcore from becoming frayed during use, gently heat the end with a lighter. This will melt the fibres together forming a hardened tip. Insert needle supplied into leadcore to prevent sleeve from sealing