Super knuckle features a double socket arm and ball head in each end which allows it to lock the centre knob offers an ultra-versatile solution for mounting and positioning. Constructed from a die-cast aluminum alloy shell, ball heads and knob make it sturdy and lightweight. The standard ball heads comes with a hex baby stud in one end and a 1/4’’-20 threaded stud on the other. Connecting with Convi clamp by baby hex stud offers mounting solutions on any tube from 5-50mm and flat surfaces. The innovative design of socket and ball head offers the ability to interchange various components for a wide range of applications in industries including lighting, camera, monitors, tablets, smart phones and any mobile device. Overall length: 151mm(5.95”), Loading capacity: 8kg(17.6lbs)

With the same function as KS-410, the Universal Tablet Holder for iPad Pro comes with bigger dimension, 215-376(L) x 162-281(W) x 10(H)mm, which can hold iPad Pro 12.9” and also perfect for a Graphics tablet holder.
 
Weight  - 285g

In the packaging:
Only tablet holder without any accessories