Articulating Friction Magic Arm 11 Inch & Large Adjustable Super Rod Clamp Pliers Clip with 1/4" and 3/8" DSLR Camera Rig/ LCD Monitor/ LED Lights/ Flash Light 11inch adjustable magic arm. 360 swivel head at the end of the 11 INCH magic arm. Super clamp plus extender with 1/4" and 3/8" thread attachments. Clamp opens maximum 1.77 inch