Feature:1. Well Made: Made of aluminum alloy material with CNC process, durable and simple for operation, easy to install and use, having good performance for long service life.2. Working Performance: With the knob, you can operate the head 360 horizontal rotation and ball head pitching, with 360 panoramic scale at the bottom.3. Easy to Use: Ball head has U shaped groove design, you can easily switch the vertical shooting mode, able to meet most of your needs for daily using.4. Wide Application: Bottom is designed with 3/8in screw hole with adapter screw to convert to 1/4in screw hole for easy mounting to most tripods on the market,5. Other Designs: The knob adopts level design to enhance position perception, which is conducive to adjust the horizontal positioning when shooting. Top 1/4in screw, rubber pad design prevents device from scratching.Specification:Item Type: Ball HeadMaterial: Aluminum AlloyColor: As Picture ShownApplication: for Monopod, Tripod, Sliding RailBottom Diameter: 4cm/1.6inGross Weight: Approx.152g/5.4ozInterface: 1/4in Screw, 3/8in Screw Hole.Package List:1 x Ball Head