Leofoto Leveling Base w/ Handle for 75mm Bowl Arca Black. The leveling base features a lightweight aluminum construction and the base is topped by the widely used Arca-type clamp. What differentiates the YB-75C from the YB-75K line is that the C uses a lever-release clamp while the K uses knob release clamp. The handle twists to lock the base in place for ease of use when mounted with three different handle length options available. Specifications for Leofoto YB-75LC Leveling Base w/ Handle for 75mm Bowl: Manufacturer: Leofoto Color: Black Attachment Type: Arca Features of Leofoto YB-75LC Leveling Base w/ Handle for 75mm Bowl Arca-Type Lever-Release Clamp Precision Scale for Positioning Diameter: 75mm (Compatible with 75mm Bowl Tripods) Bubble Level Adjustment Range of +/- 15degrees Package Contents: Leofoto YB-75LC Leveling Base w/ Handle for 75mm Bowl Leofoto YB-75LC: YB-75LC Leveling Base w/ Handle for 75mm Bowl Arca Black