Why choose the SmallRig HawkLock H21 Quick Release Magic Arm with Ball Head 4488 for your photography and videography needs? This innovative and compact accessory is designed to enhance your equipment setup with its exclusive patented quick-release slider slot, ensuring swift and secure attachment and detachment. The HawkLock H21 is engineered with roll pins positioning technology and a self-locking system, providing vertical locking capabilities and supporting loads up to 5.5kg (12.2 lbs), making it a reliable choice for various gear.Featuring a 20mm (0.8in) ball head, this magic arm is equipped with 1/4"-20 screws and detachable locating pins at both ends. When paired with SmallRig camera cages such as models 4119B, 3084C, and 4088B, or monitors with compatible locating hole specifications, it effectively prevents equipment deviation, safeguarding your valuable devices.