This 4-hole 15mm rod raiser clamp is widely used on standard 15mm DSLR/DV support rig system to attach other bracket or device for convenient shoot and recording.
It allows front-of-camera accessories (such as a follow focus or matte box) to be used with video DSLR with battery grip or other under-camera accessory.
It raises a second set of 15mm rods 30mm from the existing rods.
Fits standard 15mm rods, 60mm rails center-to-center distance.
Made of Aluminum alloy, very solid and durable.