Description
Product Overview
The Neewer ST85 Super Clamp with 3-inch Dual Ballhead Magic Arm is a versatile mounting solution designed for content creators and filmmakers. Crafted from durable aluminum alloy, this clamp securely holds objects from 0.6 to 2.3 inches in diameter or flat surfaces up to 2.2 inches thick, supporting up to 3.3 pounds. It includes a flexible magic arm with dual ball heads for 360° rotation, a 360° ball head adapter with 1/4″ screw, a universal action camera mount, an adjustable phone clamp for 2-3.3 inch devices, and multiple 1/4″ threads with a cold shoe for accessory attachment. Compatible with DJI Ronin and Freefly Movi gimbals, GoPro action cameras, smartphones like iPhone 15 Pro Max, and NEEWER LED lights, it ensures scratch-free operation with rubber padding.

Usage
This product is ideal for vloggers, filmmakers, and photographers working in dynamic environments such as studios, outdoor shoots, or on-the-go content creation. Use it to mount cameras, monitors, or lights on tripods, camera cages, or handles for stable positioning during portrait or landscape shooting. The adjustable clamps and ball heads allow quick angle changes, making it perfect for action sports recording, interviews, or live streaming with smartphones or action cameras.
Why Choose Us
Neewer delivers reliable, professional-grade accessories with a focus on durability and user flexibility. The ST85 set stands out with its all-in-one design, combining a super clamp, magic arm, and multiple adapters to reduce the need for separate purchases. High-quality aluminum alloy and precision engineering ensure long-lasting performance, while the universal compatibility saves time and effort in setup. Backed by rigorous testing, it offers a cost-effective solution for enhancing your creative workflow without compromising on stability or ease of use.
Key Features
- Super clamp for flat or round surfaces up to 2.2 inches thick with rubber padding to prevent scratches
- 3-inch flexible magic arm with dual ball heads for 360° rotation and precise device positioning
- 360° ball head adapter with 1/4″ screw for mounting cameras and quick angle adjustments
- Universal action camera and smartphone clamps compatible with GoPro, DJI, and major phone brands
- Multiple 1/4″ threads and cold shoe for attaching accessories like microphones and LED lights
FAQ
What surfaces can the super clamp attach to?
The super clamp works on both flat and round surfaces, such as tripod legs, handles, or bars, with a diameter range of 0.6 to 2.3 inches or flat thickness up to 2.2 inches, thanks to its adjustable design and rubber padding for secure, scratch-free grip.
Is this compatible with my smartphone?
Yes, the included phone clamp adjusts from 2 to 3.3 inches, fitting most smartphones including iPhone 15 Pro Max, Samsung Galaxy models, and Huawei devices, ensuring stable mounting for video recording or streaming.
Can I use it with a GoPro action camera?
Absolutely, the universal action camera mount adapter supports GoPro Hero 12, 11, 10, 9, Max, Insta360 ONE X3, X2, GO 3, GO 2, and DJI Osmo Action 4, 3, 2, allowing easy attachment for hands-free filming.
How much weight can the magic arm support?
The aluminum alloy magic arm can hold up to 3.3 pounds, making it suitable for lightweight cameras, LED video lights, or field monitors without sagging or instability during use.
What accessories can I connect to the cold shoe?
The cold shoe and 1/4″ threads allow you to attach various NEEWER accessories, such as the ST25C Articulating Arm, CM14 PRO Microphone, or PL81 LED Fill Light, to expand your setup for professional content creation.




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