
These are really useful and durable clips for attaching camera, lighting or audio equipment. The top of the clamp is notched so that it can be attached to either a round pipe or a flat surface. I like that there is thick vinyl on both ends of the clamp mechanism so it doesn't ruin the items the clamps are attached to (usually a door or bookshelf for me). They come with pre-punched holes for 1/4" and 3/8" spigots. The thick metal and thick adjustment screw give me the confidence to mount my most prized camera gear to these clamps. Posted some pics of the clamps. If this review was helpful, please click the button? Thanks very much!

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