Thoughts on some of the balls I have used : r/Trackballs
Allegheny County, Pennsylvania
Kensington Expert Wired Optical Trackball Mouse Black 64325 AC64325
Kensington Expert Mouse - Wireless Ergonomic TrackBall Mouse for PC, Mac and Windows with Ambidextrous Design, Optical Tracking, Scroll Ring & 55 mm Ball – Red (K72359WW) : Amazon.co.uk: Computers & Accessories
Kensington Expert Mouse - Wireless Ergonomic TrackBall Mouse for PC, Mac and Windows with Ambidextrous Design, Optical Tracking, Scroll Ring & 55 mm Ball – Red (K72359WW) : Amazon.co.uk: Computers & Accessories
Kensington SlimBlade Pro is a stylish wireless trackball with HAL 9000 vibes - Yanko Design
Kensington Slimblade Pro Trackball K72080ww - WC01
Driver for Kensington Expert Mouse Pro Model #64213? (x-post r/mac) : r/apple
Kensington Expert Mouse Pro, Year 2001
Kensington SlimBlade Pro Bluetooth Wireless Rechargable Ergonomic Trackball Mouse for Windows and macOS, Ambidextrous Design and Optical Tracking (K72080WW) : Amazon.co.uk: Computers & Accessories
IS IT THE BEST?! Kensington SlimBlade Pro Wireless Trackball Review - YouTube
Just purchased a Kensington Expert Trackball | UAD, Apollo, and LUNA Forums
Kensington Professional Trackball & Pro Fit Gesture Mouse Review - Page 3 - eTeknix
Kensington Expert Mouse - Wired Ergonomic TrackBall Mouse for PC, Mac and Windows with Scroll Ring, Ambidextrous Design and Optical Tracking - Grey (64325) : Amazon.co.uk: Computers & Accessories