Manfrotto 468MG Hydrostatic Ball Head with 410PL Quick 468MGRC4
Manfrotto 468RC Pro Ball Head Tripod Head at KEH Camera
Amazon.com : Manfrotto Hydrostatic Ball Head with Top Lock Quick Release (468MGQ6) : Tripod Heads : Electronics
2 Manfrotto Pro Ball Heads 468, 469, And Leveling Head 438
Manfrotto Pro Ball Head 468RC with Quick Release (3435QR) | eBay
Amazon.com : Haoge P30 Double Type Quick Release Plate of Arca-Type and Manfrotto's RC2 Standard Compatible with ARCA-Swiss/Kirk Manfrotto 468/484/486/488 RC2 Ball Head : Electronics