The Diamond Fishing Products double barrel copper sleeves feature a chrome black finish and are excellent for use with big game wire, fluorocarbon and monofilament leader materials. The Diamond Fishing Products double barrel copper sleeves are burr-free and non-abrasive for high strength; their corrosion resistance makes these sleeves the preferred choice for many top big game fishermen.

These sleeves are best used with cable leader. For the highest strength connection with monofilament and fluorcarbon lines, the Diamond Fishing Products Aluminum Sleeves are the best choice.