Features:

Material: This Andoer super clamp, with magic arm, is made of solid anti-rust stainless steel metal and black andodized aluminum alloy for high durability. Non-slip rubbers on the inner side provide strength and stability.
Versatile: The magic arm clamp has a female 1/4"-20 and a 3/8"-16, both the standard fitting sizes in the photo industry for heads and tripods can be used for a variety of attachments.
Easy to Control: This precise and durable designed magic arm with locking control knob to release or enlarge the tension which can give all position movement, a great chuck to easily and quickly catch the object.
Wide Compatibility: 1/4" screws at both ends of the magic arm, can be connected to a monitor, a LED video light, flash light and others with 1/4" screw hole.
Widely Adjustment Range: Max. open (approx.): 38mm; Total length: 130mm. Recommend clamp product: 13mm-30mm in diameter.

Specifications:

Material: Metal
Screw Mount: 1/4" & 3/8"
Clamp Compatible Diameter: 13mm-30mm
Item Weight: 130g / 5oz
Package Size: 13.7 * 6.3 * 3.2cm / 5.4 * 2.5 * 1.3in
Package Weight: 148g / 5.2oz

Package List:
1 * Magic Arm Super Clamp