Features:Aluminum alloy material, precise CNC-machined, solid and stable to use.30mm Ball diameter, up to 5kg/11.0 lbs load bearing.360Swivel panoramic-view ballhead, ergonomic damping fine adjustment knob, coarse adjustment with precise adjustment, locking reliable and safe shooting effect.Built-in bubble level, which can help you find the balance quickly.Universal compatibility, features 1/4 inch thread screw and 3/8 inch bottom thread, suitable for most DSLR cameras, camcorders, tripods, mini tripods, sliders and monopods.Specifications:Model: QB-30AMaterial: aluminium alloyHeight: Approx. 83mm/3.26inchBall Diameter: 30mm/1.18"Bottom Base Diameter: 40mm/1.57"Bottom Screw Hole: 3/8Top Screw: 1/4-20Load Bearing: 5kg/11.0IbNote:Please allow 0-1cm error due to manual measurement, make sure you do not mind before you order.Please allow slight chromatic aberration due to different display resolutions.Package includes:1x 360Panoramic-view Ballhead Kit