... and accessories. First of all, I have already used several purchased products from K&F Concept and the company has not exactly cheap but good products. There is actually nothing wrong with the suction cup holder, the concept with the pump is great, the bracket is very firmly attached to a disc, I have never seen such holding force with a suction holder. The holder is very neatly designed, everything seems sturdy made of metal, of course except for the parts which, due to the design (such as the suction cup or the filter), must be made of other materials. Even a protective cap for the suction foot is included, unfortunately without a mounting lug, so that you cannot attach it to the holder when in use, I have removed this from the craft box with a small cable holder to stick on, see photo (currently picture 2). It was thought of several 1/4” mounting threads, you could attach more accessories here although I would have gone for the larger version, at least visually it does not look “balanced” depending on the accessories, of course. A cable security holder was thought of, which I did not immediately assign after looking at the instructions, this could be very tight for some safety ropes, attached is a photo with a “SIM needle” (currently picture 1). To the “magic arm” of a possible connection between holder and device which allows all possible and impossible angles, in the usual quality of the company, sturdy where possible made of metal, well made, on the device stabilizers with an anti-slip pad, great. The action cam mount is standard, made of plastic, with a 1/4" threaded metal socket, I think brass, you can't go wrong here, there is no dedicated “anti-slip pad”, the protection against slipping consists of a textured surface. The mobile phone holder is well made, has an “anti-slip pad” on the sides, the large contact surface on the back is unfortunately only roughened, there are 2 threaded metal bushings, again I think brass, one on the back and one on one of the front sides. There is something worked out on the opposite front side which is reminiscent of a standard flash mount, on which you can attach a lightweight microphone or a small light, for example, quite difficult for my microphone. But what really bothers me about the mount is that, for my taste, I could have invested a little more here and took a bracket with a clamping screw, the springs on the bracket run pretty smoothly for my taste and I would think about whether my cell phone would not slip out if there was a bump in the car. In addition, the mobile phone rotates back and forth slightly in the holder because it is not really stabilizing anywhere and holding on there, which is not exactly due to the weight distribution, heavy camera module at the top, bracket can only be attached in the lower third because otherwise, for example, the on/off switch is being pressed, just improved. By the way, I noticed this for the first time with this mobile phone holder, all other holders I have here run diagonally towards the back and therefore clamp firmly towards the back, picture attached, red from other manufacturers (currently picture 3). There is also an enclosed guide or notes, even with a German part which is even understandable in order and halfway, Spanish, for example, is not in order but is still on the same page of the instructions. Great for action cameras, which you might also want to use as a dash cam while on vacation, e.g. in a rental car. Also great when you're out and about, for example, for a smaller light, a microphone or an additional flash. In my opinion, other uses depend on the attachment, e.g. standing or hanging, and the equipment. With my old S20 Ultra, I don't exactly have a lightweight and small mobile phone, certainly, maybe the whole thing would be more stable with a smaller iPhone, for example, everyone has to decide for themselves. If you want to use it with larger equipment, possibly with microphone and light, I would personally go for the larger version next time (actually sound 76mm in size and don't look small on the ruler), even if the weight still fits, there are definitely higher safety reserves and especially when filming in a vehicle, for example, you have to inflate the inertia and the resulting weight load, e.g. With bumps in the ground, gravity says hello, pay attention. Picture below where you may be able to assign the size even if the angle is a bit unfavorable (currently picture 4). I would have liked to deduct only half a point due to the certainly really small things that bother me, but unfortunately this is not possible.