CA013 is a powerful pump activated vacuum suction cup that can firmly stick to most surfaces and rotate your mirrorless camera, vlog camera, action camera, and smartphone at 360°. An articulating magic arm with two 1/4" ball heads attaches your device to this suction cup and offers flexible mounting positions. The suction cup offers a maximum load of 11b (5kg) at speeds up to 80 km/h (50 mph) in motion. For stationary surfaces, it offers 88lb (40kg) bearing in horizontal orientations and 110lb (50kg) bearing in vertical orientations. 6" (153mm) enlarged suction cup is applicable to smooth, flat, and nonporous surfaces, including glass windows, ceramic tiles, wood desks, metal boards, and more. Easy to remove through the rubber grips. 1/4" and 3/8" female threads with ARRI locating holes can securely install a magic arm, boom arm, super clamp, phone holder, action camera adapter and other accessories (only the magic arm is included). Crafted with rigid and corrosion resistant aluminum alloy, the suction cup mount can withstand uncertain outdoor environments. And the silicone rubber cup is durable and easy to clean with water.