Spigen Liquid Air Slim case is a fantastic fit on the OnePlus 9 Pro. Perfect grip on the back, solid construction. Would feel confident it could protect the phone in a fall.
Olixar Smart Loop Universal Smartphone Mount & Stand Kit complements the Spigen case perfectly.
I am using the Olixar Stand attachment with the Olixar Ring holder. It can be used in Landscape, Portrait and every other angle. It has a 3M sticker underneath, would be perfect for an office table. I haven't had to stick it to anything yet, as the stand is able to balance the phone without being fixed down, I can even type on it without it tilting over. Why didn't I buy this item sooner, to have this with other phones. Excellent product.
Olixar Ring holder stuck to the back of the Spigen case perfectly, holds solid, I can feel confident holding the OnePlus 9 Pro, it is a tall phone, but now its comfortable to use and I no longer feel it could drop when holding one handed. If it does the Spigen Liquid Air case should protect it.