Brilliant Expandability - The aluminum-alloy suction cup mount has multiple mounting points, such as built-in NATO Rail for attaching Super Clamp 3757, 1/4"-20 threaded holes for attaching Magic Arm 3873, and 3/8"-16 locating holes for ARRI for attaching Magic Arm 2115
Important Note: 1. Please mount it onto recommended surfaces and check at least every four hours. 2. When used on a vehicle please use a safety cable together, the Max load is up to 2kg with a speed of below 80 km/h, and check the suction force every 2 hours. 3. When the safety-line indicator shows, it means vacuum loss. Pump the plunger until 100% vacuum pressure.