HIGH COMPATIBILITY: Camera suction cup mount with 1/4in, 3/8in threads, positioning holes for improved stabilizing strength. Can be connected with cell phones, cameras, sports cameras, DSLR cameras, etc. Use with universal arm to complete shots of the side, top and interior of the car. EASY TO USE: Press the suction valve repeatedly until the white safety line is completely covered to fix it, and check whether the suction cup fits the sucked object completely and tightly. Easy to release, press the air release button to release the suction. PREMIUM MATERIAL: Suction cup camera car mount is made of aluminum alloy above, sturdy and durable. The bottom is made of premium silicone, soft and hard moderate, greatly enhance the adsorption force, in the high speed driving state is still stable. STRONG LOAD BEARING: The weight bearing capacity of this vacuum suction cup camera mount is up to 20kg/44.1lb, if you need more suction power, you can add one more suction cup in static condition, the overall suction power will be increased by 1.5 times. WIDE APPLICATION: This camera suction cup mount can be firmly fixed on any flat surface, such as boats, metal or ceramic surfaces, car windshields, flat glass doors, car doors, car hoods, car roofs, truck covers, car window, etc.