SMALLRIG DSLR Camera 15mm Single Rod Clamp with 1/4 Male Thead for Camera Rig Rail System - 1614 The Single Rod Clamp is a mounting solution that clamps onto a 15mm rod. Any item with a female 1/4 You can install an Articulating Arm on the female 1/4 Includes: 1x 1/4 Net Weight: 90g