Leofoto RC Leveling Head w/ Butterfly Handle Black. It locks easily and securely in position with a twist of the large butterfly handle at the base of the ball. This leveling base installs on any tripod with a 3/8'' mounting stud. The anti-twist safety screw design uses three set screws on the platform to secure the ball head in place on top of the leveling base. Specifications for Leofoto LB-65LRC Leveling Head w/ Butterfly Handle: Manufacturer: Leofoto Color: Black Features of Leofoto LB-65LRC Leveling Head w/ Butterfly Handle Half-Ball Type Leveling Capability 3/8''-16 Threaded Base Mounting Socket 3/8''-16 Tripod Mounting Stud CNC-Machined Aircraft-Grade Aluminum Package Contents: Leofoto LB-65LRC Leveling Head w/ Butterfly Handle Leofoto LB-65: LB-65LRC Leveling Head w/ Butterfly Handle Black