of the base Material: metal Base screws:1/4 standard screws Diameter of base clampable tube: within 3cm Scope of application of the base: suitable for cameras and cameras, with 1/4 standard screws suitable for use with 1/4 screw interface can be used with the head cell phone clamps Universal standard equipment multi-purpose Universal standard UNC1/4" standard screws can be used with a variety of equipment, practicality, wide range of functions. Locking knob is solid and practical Locking knob, turn clockwise to lock the clamp, turn counterclockwise to loosen it. Anti-slip plastic pad Can increase the clamping force, anti-slip and anti-dislodgement, strong bearing capacity, wear-resistant, not easy to lose paint. Goose hose Arbitrary bending hose Arbitrary bending 1/4 turn interface wide range of applications Hose material: metal Hose adapter: 1/4 turn interface Hose hose outer diameter: about 10mm Hose length: 20cm, 30cm optional Cell phone or tablet clamp Material: Plastic Cell phone clip suitable for: 6-10cm diameter cell phone Cell phone or tablet clip fits: 12-18cm diameter cell phone or tablet Kind tips: 1. Delivery does not include phone or tablet and other electronic equipment 2. Due to the pixel problem of the photo, there may be some color difference between the real object and the picture 3. The dimensions are all measured by hand, There may be some error (please understand, thank you)