I can't believe no one has heard of this thing. It's been around for years (the first version was called the "SpaceBall 3D", and actually was a ball on a stick). I get flyers for it through the mail, usually from my AutoCAD reseller. Most retailers who sell graphics workstations, like Dell, offer these as options. They used to be over $300, but now it's $59?! Sign me up!
Chuck Kottka
Orcutt Winslow
Phoenix, Arizona, USA
ArchiCAD 25 (since 4.5)
Macbook Pro 15" Touchbar OSX 10.15 Core i7 2.9GHz/16GB RAM/Radeon Pro560 4GB