Features:Ball head diameter is 36mm / 1.4in.All-metal ball head， very smooth hand feel and excellent durability.Built in bubble level indicators.Three independent control knobs， adjust different rotation angle.Scale on the pan for panoramic shoots.A removable quick-release plate is suitable for cameras with 1/4" screw.3/8" screw mount for various professional tripods.Specifications:Main material: AluminumMaximum load: 8kg / 17.64LbsItem size: Approx. 5.5 * 10cm / 2.2 * 3.9in (Base D * H)Item weight: 377g / 13.3ozPackage size: 10.5 * 10.5 * 8.5cm / 4.1 * 4.1 * 3.3inPackage weight: 417g / 14.7ozPackage List:1 * Tripod Ball Head1 * Quick Release Plate