Leofoto Outdoors Ball Head w/ 100mm Systematic Adapter Black. 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 is a hybrid dual clamp that accepts both pictatinny as well as arca-type rails 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. Specifications for Leofoto MAB-100X Outdoors Ball Head w/ 100mm Systematic Adapter: Manufacturer: Leofoto Color: Black Features of Leofoto MAB-100X Outdoors Ball Head w/ 100mm Systematic Adapter Aluminum CNC Machining Package Contents: Leofoto MAB-100X Outdoors Ball Head w/ 100mm Systematic Adapter Leofoto MAB-100X: MAB-100X Outdoors Ball Head w/ 100mm Systematic Adapter Black