Lux Gears Review: Are these the follow focus gears you've been looking for? - Newsshooter
Used Tilta Mini Follow Focus F/DSLR Cameras Lens Control- Seamless Focus Gear in 'Excellent' condition
Amazon.com : SmallRig Mini Follow Focus with A/B Stops & 15mm Rod Clamp and Snap-on Gear Ring Belt for DLSRs and Mirrorless Cameras, Fits Different Diameter Lenses Up to 114mm - 3010 :
LanParte AB Stop Arri Standard Lightweight Cine Cinema Camera 15mm Studio DSLR Mini Follow Focus Lens Gear Ring - AliExpress
ZEISS Lens Gear | Attached in a flash
G2 Axle & Gear 85-2033M G2 Axle & Gear Mini Spools | Summit Racing