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Looking for something like "ytvariw-323-rc2-quick-release-plate-adapter-for-manfrotto-monopods-tripods-fast-connect-solution"? Here are the closest matches:
SIOTI 323 RC2 Quick Release Plate Adapter, Rapid Connect Adapter with Quick Release Plate for Manfroto Monopod, Manfroto Tripod, or Other Ball Head and Tripod
323 RC2 Quick Release Plate Adapter, Rapid Connect Adapter with Quick Release Plate Compatible for Manfrotto Monopod, Manfrotto Tripod Ball Head and Tripod