Review (2/5): Weak hold on top fitting
One slight problem. The top hole does not hold the accessory pieces. The magnet installed inside the plastic rim is super weak. They actually include a screwdriver to take this plastic rim apart, so I did to investigate why the magnet hold is so weak. The plastic rim has a design to allow 4 separate magnets inside, but this company only installed 2 of them. Get what you pay for.