Features: Double 17mm Ball Head Adapters: This set includes 2pcs 17mm to 17mm ball head adapter mounts with an anti slip inner ball design, providing secure connection for various mounting needs. Ideal for phone holders, tablet stands, and camera mounts. Metal Construction: Precised engineered with metal components for strength and longevity, these adapters offer safe support and protections for your devices during extended use. Wide Compatibility: Works seamlessly with 17mm socket accessories, including positioning mount and phone/tablet holders, ensuring versatile use across multiple devices. 360 Degree Adjustability: Features full rotation and angles adjustment, perfect for magnetic phone mounts, clips, and other flexible positioning requirements. Compact Design: With a length of 8.5cm and 17mm ball diameter, these adapters fit most 17mm female sockets, great for cameras, magnetic mounts, and phone clamps. Specifications: Component: plastic + metal Color: black + silver Length: 8.5cm/3.35inch Ball head diameter: 17mm Supports 360-degree rotation, suitable for use with various 17mm female interfaces cameras, magnetic holders, and mobile phone clips Package Includes: 2pcs double 17mm ball mount brackets note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.