Mission F-Lock Rings - Flight Lock. Use with your hole punched flights for the perfect grip every time. Mission F-Lock Rings - Flight Lock - Pack 3 - Black-X2501 - These rings fit into the punched flight and hold the flight firmly onto your selected stemMission F-Lock Rings - Flight Lock. Use with your hole punched flights for the perfect grip every time. Mission F-Lock Rings - Flight Lock - Pack 3 - Blue-X2502 - These rings fit into the punched flight and hold the flight firmly onto your selected stemMission F-Lock Rings - Flight Lock. Use with your hole punched flights for the perfect grip every time. Mission F-Lock Rings - Flight Lock - Pack 3 - Red-X2503 - These rings fit into the punched flight and hold the flight firmly onto your selected stemMission F-Lock Rings - Flight Lock. Use with your hole punched flights for the perfect grip every time. Mission F-Lock Rings - Flight Lock - Pack 3 - Silver-X2504 - These rings fit into the punched flight and hold the flight firmly onto your selected stemMission F-Lock Rings - Flight Lock. Use with your hole punched flights for the perfect grip every time. Mission F-Lock Rings - Flight Lock - Pack 3 - Gold-X2505 - These rings fit into the punched flight and hold the flight firmly onto your selected stem