Features: General U8 Metal Clamp with 17.4mm Ball Head offer versatile compatibility, securely gripping round tubes (1-36mm diameter) and surfaces up to 25mm thick, ideal for phone/tablet holders and magnetic mounts with its flexible gooseneck design. Featuring a 360 rotatable snake shaped gooseneck tube, this adjustable phone mount allows precise angles customization in four lengths (20cm/30cm/40cm/50cm) for optimal positioning during photography or streaming. Designed for content creators, vloggers, and multitaskers seeking hands easy stability during live broadcasts, video calls, or bedside entertainment setups. Perfect for securing devices to tripods, desks, bed frames, or car interiors while filming , reading recipes in kitchens, or watching movies in compact spaces. Built with reinforced iron plastic mixing construction, this strong phone clamp base maintains rigidity during repeated adjustments and resists wobbling under device weight up to 1.5kg. Specifications: Component : iron Rod length: about 20cm/30cm/40cm/50cm(optional) Thread: 1/4 Package Includes: 1 set Metal Clamp Flexible Hose 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.