Nelson Photo & Video

Promaster Flex Arm HD (heavy duty)

Promaster Flex Arm HD (heavy duty) - Main image
$26.37 $39.95 In stock

Category: Support hardware

The ProMaster 5521 heavy duty flex arm is an all-purpose helping-hand for a photographer while shooting. And it can handle a heavier load than ProMaster's 5514 'standard' flex arm. It connects to a variety of clamps, tripods, and other grip items so you can hold and maneuver a light, flash, reflector, monitor, or other accessory to aid in your photography and videography.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Return arrangements

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Jason M. ★★★★★

It handled my hefty speedlight with zero sag or vibration—the locking knobs feel rock solid. Perfect for keeping a reflector in place during long portrait sessions.

Mia ★★★★★

I’ve been using this flex arm to hold a speedlight for product shots, and the heavy-duty build actually keeps it steady even with a softbox attached. The knobs tighten firmly without slipping, which is exactly what I needed.

John ★★★★★

The clamping mechanism feels much more secure than the standard version, and it easily held my speedlight with a softbox attached. It’s sturdy enough that I don’t worry about it tipping over during a shoot.