The arm and the clamp perform their function perfectly. By size, I see them suitable for an Atomos-type monitor, a smartphone, LED, a flash and of course small mirrorless cameras, as well as other accessories. The adjustment systems for both the clamp and the arm are easy to operate in practically any position, and during the time I have been using them they have been comfortable. The clamp is capable of supporting up to two kilos perfectly and thanks to its 1/4" and 3/8" threads it is compatible with an endless number of photographic accessories. The set does its job and feels good quality, with excellent finishes, and with the versatility of being able to use both the clamp and the arm separately. Suitable for carrying an action camera attached to your camera to record yourself in the first person, for macro photography to attach an LED light to the tripod, portrait sessions where you want to place a Flash on a railing or branch, a light on a shelf, table, are some of the many examples that I can think of, that can be done with this set. I am happy with this K&F product and recommend its purchase.