B00573N5I4 FEISOL CB-50D Ball Head with Release Plate QP-144750

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Feisol CB-50D Ball Head – QP-144750 Quick Release Plate – Feisol 3 Year Warranty
Ball Diameter: 50 mm / 1.97″
Base Diameter: 70 mm / 2.8″
Thread Size: 3/8″
Max. Load: 19 Kg / 41 lb