SmallRig Double Ball Heads with Cold Shoe and Thumb Screw 1135 is a multi-function double-ball head on both ends with shoe adapter and 1/4"-20 screw. It can mount monitors and LED lights to DSLR. The ball head can rotate 180º and has a 1/4"-20 screw on top. It can be mounted directly to a DSLR or camcorder's shoe mount. Also, it is compatible with a full array of other video accessories. Used to attach monitors or small lights to your camera while shooting videos, this ball head has a single locking knob for fast and safe operation.