- 15mm double hole rod clamp provides quick connection to 15mm pipes with hand-tightened screws, enabling easy attachment of external devices to your rig. - The rail block rod clamp offers multiple 1/4" threaded holes, 6.5 through holes, and 1/4" headholes, giving flexible expansion options for external devices. - Made of aluminum, this camera pole clamp is durable for heavy use while maintaining its function and structural integrity. - These rigs shoulder support rails fit easily into different facilities without taking up significant space, supporting compact and adaptable setups. - Use scenarios: - On location shoots, attach monitors, wireless receivers, or other accessories to the 15mm rail system for quick setup. - In studio environments, mount lights, microphones, or additional gear using the available threaded and through holes. - In portable rigs, leverage the compact aluminum clamp to keep shoulder rigs organized in spaces with limited room.