SMALLRIG Clamp 90 Degree Rod Clamp Railblock for Side Handles DSLR Rig - 922 The clamp is designed basically to to mount the Side Handles to the front of our shoulder mounts, it can also be used in many different configurations, and it's very easy to set up. 15MM Rod Holes fits for any 15mm rods. It could be easily locked via black wingnuts. Lightweight (94g), Easy to carry around with you. Material: aluminium alloy Package includes: 1 x rod clamp