Momoi Hi-Catch Diamond Monofilament Leader Keeper - These 50 yard Leader Keepers of Momoi's Diamond Hi-Catch Monofilament are just the right fit for your tackle box. This premium performing leader is formulated with a tougher finish for superior abrasion resistance and offers tremendous tensile strengths of up to 200% of stated line tests. Plus, the unique leader keeper not only protects the line, but also ensures quick availability when the action is hot!