This is 2 Pack multi-function double ball head with bottom super clamp and 1/4" tripod threaded screw to mount Monitors and Led Lights to DSLR. Comes with a double ball munt with 360 degree swivel Articulation for easy direction. Single locking knob for quick and safe locking.Standard 1/4"-20 tripod screw on top to mount video monitors and small led lights. Comes with solid mini super clamp with Max open(approx) 2.16inches,It holds tight and can mount virtually everywhere you need like 15mm rods, hooks, shelves, plate glass,cross bars.With 1/4"-20 and 3/8"-16 thread for setting up other configurations. Made of solid aircraft aluminum. Package includes 1x double ball head mount,1x mini super clamp.