***** **********Best Quality Guranteed. *****Two grooves, one can support clamp the cable in 1.6 -7mm diameters. The other one can clamp the cable in 3mm diameters. With the help of those grooves will clamp all the DSLR camera related cables---hdmi cords sdi cables, power cable, microphone cabe, etc*****The cherry cable clamp aimed to help the photographer make the good cable clip management. Reduce the interruption on cable in the focus and the embarrassment on cable loosing bugs*****Aluminum material made only 13g in weight, Small in size. Easy to carry with and storage*****With 1/4inch threaded holes and bolts which can easily attach the cherry clamp onto camera cages.