SmallRig Super Lightweight Railblock, 15mm Rod Clamp with 1/4"-20 Thread for Sony, Canon and Other DSLR Camera Rig Shoulder Support System - 942

Very helpful for rigging. These are good quality, and they clamp on tight. These have metal tightening tabs, which is a must. Stay away from the ones with plastic tabs, I've seen a ton of those break.

These rail blocks are perfect for diversifying your camera rig.The attachment points on them make them easy to add shoes to or other camera accessories. They slide on and off the camera rods with ease, and once they are tightened, they hold extremely well. The materials are long lasting and will hold up even in the elements.Smallrig knows cameras, and this product is another example of their expertise.

Zero complaints at a great price.

These are sturdy and strong. Was wondering what the screw dimension in for the wing nuts though. I'm using a bunch of these and thoughts it'd be cool to replace the wing nuts for something with a hex head. If anyone knows I'll love to hear it.

Works great but slightly too tight, which makes putting them on and taking them off difficult.

These always come in handy for additional attachments to the camera rig.

Buena calidad en su estructura, muy fácil de acoplar.

I used it to add a focus knob to my Canon C200. The knob is actually used for the lens' zoom ring. Perfect fit, finish and function. I'm set!