Leofoto Leveling Base w/ Handle for 100mm Bowl - 3/8'' Black. The leveling base features a lightweight aluminum construction and the base is topped by a 3/8'' mounting stud. 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-100LP Leveling Base w/ Handle for 100mm Bowl - 3/8'': Manufacturer: Leofoto Color: Black Features of Leofoto YB-100LP Leveling Base w/ Handle for 100mm Bowl - 3/8'' 3/8'' Mounting Stud Precision Scale for Positioning Diameter: 100mm (Compatible with 100mm Bowl Tripods) Bubble Level Adjustment Range of +/- 15degrees Package Contents: Leofoto YB-100LP Leveling Base w/ Handle for 100mm Bowl - 3/8'' Leofoto YB-100LP: YB-100LP Leveling Base w/ Handle for 100mm Bowl - 3/8'' Black