Leofoto MK-40X Ballhead + GS-3 Rifle Clamp Combo The Leofoto MK-40X + GS-3 combo combines the MK-40X 40mm ball head with the lightweight GS-3 clamp mount for a secure and adjustable outdoor support system. The MK-40X features an elongated locking knob, separate tension control, Arca-compatible clamp, and a 20kg / 44.09 lb maximum load capacity. The GS-3 features fully ambidextrous operation, inward-angled jaws, and textured rubber pads for a secure grip. Its double-start thread allows both jaws to move together for easy centering and secure clamping. Specifications: Overall Height: 172mm / 6.77"Combined Weight: 762g / 1.68 lbs MK-40X Ball HeadHeight: 87mm / 3.43"Ball Diameter: 40mm / 1.57"Maximum Load: 20kg / 44.09 lbs Mounting hole: UNC3/8", Rosette for Leofoto SA-X tripods GS-3 Clamp MountClamping Width: 28-80mm / 1.1-3.1"Length: 113mm / 4.45"Width: 76mm / 2.99"Height: 85mm / 3.35"