Check the listing for details. Leofoto LB-75LRC Leveling Head Arca + Picatinny Hybrid Lever-Release Clamp. Condition: New. Listed at 143.10 USD. The Leofoto LB Series Leveling Head with Butterfly Handle acts like a half ball and offers a range of +/-15°. 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. Half-Ball Type Leveling Capability 3/8"-16 Threaded Base Mounting Socket 3/8"-16 Tripod Mounting Stud CNC-Machined Aircraft-Grade Aluminum 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. LB-75LRC Leveling HeadArca + Picatinny Hybrid Lever-Release Clamp Top diameter: 75mm/ 2.95inBase diameter: 75mm/ 2.95in Height: 75mm/ 2.95in Max load :25kg/ 55lb Weight: 400g/ 0.88lb