The Leofoto MAB-X Precision Rifle Ball Head with 75mm/100mm Systematic Adapter is machined from solid aircraft grade aluminum and hard anodized for the optimal strength and durability. The MAB-X is designed to be used with 75mm or 100mm compatible systematic tripod apexes. It features a redesigned lever-release arca clamp as well as a lever controlled ball. The redesigned clamp comes with an adjustable clamping width. The MAB-X is essentially an MA-40X ball head attached to a 75mm/100mm adapter. The ballhead can be removed from the adapter and be used as a standard ballhead which has the X rosette and 3/8" mounting studs. The systematic adapter can only be placed into a 75mm or 100mm systematic tripod apex. Two versions are available: one with a dual Arca and Picatinny clamp, and another with Arca only. Please select the option that best suits your needs. Leofoto MAB-75X: Height: 110mm / 4.33 inWeight: 549g / 1.21 lbMax Load: 20kg / 44.09 lb Compatible 75mm Systematic Tripods: LM-32xC LM-36xC LN-364C SO-322C SO-362C Leofoto MAB-100X: Height: 110mm / 4.33inWeight: 582g / 1.28lbMax Load: 20kg / 44.09lb Compatible 100mm Systematic Tripods: LM-40xC LN-404C