Features: Magnetic bottom and 6pcs built-in magnets, it is very suitable for surveillances cameras, sports cameras, phone clips, with a diameter of 66mm and a load-bearing capacity of 1kg. It can provide strong and stable grip, firmly fix your camera, and perfect magnetic phone accessories to help you focus on exercise without worrying about your phone falling off. Widely used in kitchens, offices, gyms, bathrooms and more, supporting angles adjustment and 360 degree rotation. Standard 1/4 screws are used to connection various photography stands such as cameras, fill lights, phone clips, tablet clips, magnetic phone stands and more. Magnetic 1/4 male female interfaces tripod mounting plate is suitable for tripods, selfie sticks, DSLR cameras, surveillances cameras, and camping lights equipped with 1/4 screw interfaces. Specifications: Component: magnet + iron + aluminum alloy Base size: 66mm/2.6inch, height: 10cm/3.94inch Color: red color, green color, black color Magnetic 1/4 base is used for surveillances cameras, action cameras, mobile phone clips, tablet computer clip and more Package Includes: 1Pc 1/4 Female 66mm Magnetic Base 1Pc 1/4 Male to Male 17mm Ball Head Adapter Clamp note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.