Versatile SunwayFoto DDC-37 Screw-Knob Clamp for diverse photography and videography applicationsSturdy screw-knob design for secure and easy adjustmentsPart of the FB-28 ball head series with a captive-design knob for firm gripBuilt-in bubble level and three offset bubble level mounting holes for accurate alignmentSafety stop relief grooves for added equipment securityUniversally compatible with Arca-style plates, adaptable for various setups