【Strong Suction & Solid】Exclusive double-layer suction cup provides long-lasting and stable adsorption to keep the equipment safe. The button of the cups is to lock for further security. The dual suction cups 3566 is desighed for users with car shooting, driving records, mobile shooting and so on. | 【Wide Application】 It can be attached to any dry, smooth and clean surfaces such as metal / ceramic surfaces, car hood, car top roof, trunck lid,etc. Recommended operating temperature range: -40℉ ~ 140℉. Please control the speed under 80km/h on and off-road and check the suction condition before use. | 【Load Capacity】Compatible with lightweight cameras, mobile phones, action cameras and other devices. The load capacity is 0.5kg / 1.1lbs for speeds up to 80km/h (50mph), 3kg / 6.6lbs when not in motion and 2kg / 4.4lbs for lightweight cameras. It is recommended to attach a lanyard and check the equipment every 2 hours. | 【Quick Release & Easy-use】One-button press design for quick removal and installation of suction cups to improve shooting efficiency.The magic arm is attached to the suction cups via a NATO rail at one end and able to quickly mounted onto other NATO rail accessories. | 【Angle Adjustable】The double ballheads structure can adjust the angle according to different usage scenarios and shooting needs. The thumbwheel is easy to mount adjust the tightness. A 20° adjustable space between the two cups allows to be attached to curved surfaces.