Before I get going, I should mention that there is a newer version of this ball head, the�JOBY ball head 5K. It has a red ball and costs $20 more but I can't figure out what else is different about it. Same weight rating, same everything as far as I can tell. This one is perfect, I can't imagine why anyone would pay extra for the new model. OK, on to the review.I bought this ball head to replace the rather crummy one that comes with the otherwise-excellent�Dolica AX620B100 62-Inch Proline Tripod and Ball Head. That tripod is probably the best value for money you can get if you want a lightweight tripod for travel and hiking, but the supplied ball head is pretty meh. This one is excellent! Here's why:This ball head offers the best of both worlds between a standard ball head and a pan head. The conventional wisdom is that ball heads are great for simplicity and flexibility, whereas pan heads are better for precision but a bit clumsy to use. Specifically, a pan head makes you move your camera one axis at a time, whereas a ball head allows you to move the camera in all axes simultaneously but has no way of locking one axis while moving another. Neither is better, both types have their pros and cons. Ball heads for flexibility, pan heads for precision.Most ball heads have one knob, which you loosen to let the camera move and then tighten to lock it. Very easy and intuitive, but what if you want to do something like take a multi-shot panorama? There's no way to turn the camera horizontally while ensuring that it remains level; you just have to be careful and re-adjust as necessary, which is doable but a pain. This ball head, though, has two knobs. The big one works like normal, but the little one allows you to turn the ball head horizontally at the base while keeping the main ball joint securely locked. Brilliant! It works just like it should. One of those forehead-smacking, ""Why didn't I think of that?"" innovations.Also, importantly, this is a quality ball head. The quick-release plate is secure and easy to use with no fiddling, and the screw has a nice big flange on it for easy tool-less tightening. The ball joint has just the right adjustability on the tension, so that you can easily get it into that ""moves smoothly when I push it and then stays"" mode while you're making your adjustments, instead of having to choose between totally-floppy and totally-locked. It has degree markings on the base to help you with your panning. You get the full range of motion that you'd expect from a ball head, including the ability to flop the camera over 90? for vertically-oriented shots. The metal bits are solid and well-machined, the rubbery bits are nice and grippy. It is compatible with both 3/8"" and 1/4"" tripod screws. Nothing crazy, just a well-made, well-thought-out, moderately-priced ball head with a killer extra feature. The one thing it lacks is a level, but my tripod has a level and my camera has a level so that doesn't matter to me.This is the best ball head I know of�period�at a mid-range price. Yes, it costs about as much as the entire Dolica tripod-plus-ball head that I linked above, but you can easily pay more to get less. The panning feature alone is worth the price of admission. If you want the flexibility of a ball head with the control of a pan head, this is what you want. It's a quality product from a well-known brand and it works, with no flaws. Highly recommended.