Hi, I also found it quite interesting, but couldn't find bottom part diameter info, and still quite hesitant on purchase. Anyways, would really appreciate a real user feedback when you receive it on B&H. Thank you.

@@johnyyjoestaro Had to cancel my B&H order because it was taking too long. Also I found the ball head listed on Amazon and it showed 2 day shipping which was the reason I needed to cancel my B&H order. Anyways it's great better than expected. It has a few quirks but not a deal breaker. For this price point the quality is great. It reminds me of the Arca-Swiss monoball p0+ and monoball p1+. These two products start at $450 and go up to $541. I paired my Falcam 320P with my Sunwayfoto T3240CM which also has 3rd party feet/spikes to add an additional 1 inch hight. All three the Falcam Ball Head, Spikes and Tripod give me a working hight of 60 inches. And a total weight of 1.95kg or 4.3lb. I would definitely recommend the Falcam 320P Inverted Ball Head with F38 Pro Quick Release. Will see long term how it holds up but so far I am happy with the purchase.

I like to check this tripod out myself. That ball head design is innovative. My only concern is the load it could take? Could it support my Z 100-400? Think with full extension, this tripod could support my 70-200 without tipping over under strong winds. The price is high enoigh, close to a Gitzo though...

@@hishamosman4341 Seems like my reply to @johnyyjoestaro was removed. Basically I bought just the ball head per my original comment 3 weeks ago. I paired it with my Sunwayfoto T3240CM tripod which is offers a bowl head as an option. So it's very sturdy. Not sure why my comment was removed (deleted). I mentioned that the Falcam Ball Head is thus far to my liking and works great. I also said it's not perfect but none of these products are. Also I bought the Ball Head from Amazon it was not gifted to me to make a review.