Product name: 15mm double ball head magic arm Product color: black Product material: ABS Applicable types: mobile phones/cameras/for GoPro/microphones, etc. Screw type: British 1/4-20 screw Product angle: double ball head 360° rotation Product features: 1. Special material, large load-bearing, mini magic arm, small object, big use 2. Standard screws for photography, wide range of use, can be used for most photography and videography such as mobile phones/cameras/for GoPro 3. Grid circular gimbal, anti-slip and anti-drop, protect equipment from damage, grid piece fits the product better 4. Slotted locking screw, designed according to the shape of human fingers, more fit, firmly locked and heavy load-bearing 5. Mini and compact, easy to carry, convenient to use anytime, anywhere Product gross weight: 40g Package includes: 15mm double ball head magic arm*1