The Ansso LightPad Swivel Arm is an 8" socket arm with a 5.5 lb weight capacity that will support all LightPads except the 24 x 24" model, the Swivel Arm with a higher maximum load and increased mounting options, two 1/4"-20 Male at both directions.
Dimensions : 322 x 40 x 27mm (126.7 x 15.7 x 10.6 in)