The ball head, which we entrust our photography equipment, should be worked lightweight, bombproof, ergonomically and technically clean and cost little money. The selection is huge, every choice a compromise. The RR-03 ball head is very easy with two locking screws to use and has passed the reliability test immediately. Even with the 70-200mm he has no problem holding. The effort for tightening and loosening of the ball head is moderate and gives the feeling that there is still plenty of reserve is available. Although no manual is included, one learns when "playing" fast that both screws "equal rights" and at the same time can be operated / should. For Panorama function and degree scale, I can not say anything because the ball head zzt. serves on the monopod.
The shown in product photo horizontal vial on Toolholders missing, the delivery so wrong with the detailed product photos match. That is to criticize, although I think the dragonfly on quick coupler for a charming gimmick.
The securing screws on the bottom of the quick-release plate could no less than even half a millimeter further protrude from the surface to inhibit the quick release plate on longer slipping. I will try to achieve this through washers. All threads, controls and functions are available for a very solid piece of equipment.
Incidentally, there is an identical ball head as "Andoer" labeled to 25% cheaper on Amazon. Whether there is the second bubble exists, I can not check. The product photos are identical except for the lettering "Andoer".