Camvate Universal C Clamp with 1/4"e;-20 and 3/8"e;-16 Thread Hole for Desktop Mount Holder Microphone Mounting Equipment LCD MonitorC clamps is made by high quality aluminum alloy and stainless steel. It is very durable and lightweight. You can easy to carry it anywhere anytime.Clamps jaw opening range is from 1mm to 45mm, which is suitable for less than 45mm thick things.The c clamp 1/4"e;-20 thread holes and 3/8"e;-16 thread hole, which allow you to mount more accessories kits like Articulating magic arm, Ball head mount, Multi-function double ballhead.The clamp ABS plastic material on the inner side protects your rig and reduces scratches. It also locked the accessories kit more durable and steady.The universal c clamps attaches to desks, carts, benches, worktables, metalwork, woodwork, stages, studios, broadcasting and even photography. It is ideal accessories for various projects inside and outside the house.