Colebrook Bosson Saunders is a British design studio that has been making monitor arms since before most people had a second screen. Its Flo mechanism is the reference point for spring-assisted movement, and the arms hold position without needing retensioning every few months.
Flo, Flo X and Ollin
The Flo Single and Flo Dual take screens from 2 to 7 kg, up to 34″, flat or curved to 1000R. That covers the large majority of monitors sold today. CBS redesigned the Flo in 2025 with patent-pending Dual Rate Spring Technology, 49% recycled content and plastic-free packaging, and it won a Good Design Award that year.
Above 7 kg you want the Flo X, rated 3 to 18 kg and good for screens up to 49″ at 32:9 as well as dual and triple setups. The Flo X replaced the older Flo Plus in the CBS range. We order it in — call us on 02 9640 0642 with your monitor model and we will price it.
Ollin is the cleaner, more minimal option where the arm itself is visible in a client-facing space.
Before you order
Check three things: your monitor's weight, its VESA pattern, and your desk thickness. An arm rated below your screen weight will sag no matter how you adjust it, and one rated above it will push the screen upward. Use the weight on the manufacturer's spec sheet, not the shipping weight on the box, which includes the stand. Our compatibility checklist covers this in four steps.
CBS arms carry a 12-year warranty, which is unusually long for a product with a spring mechanism and tells you something about how they are built. That warranty is in addition to your rights under the Australian Consumer Law.
Guides and buying advice
- CBS Flo vs Ollin: which monitor arm is right for your desk?
- Will a monitor arm fit my desk? A four-step compatibility checklist
- How to choose the right monitor arm for your desk setup
- Premium monitor arms compared: CBS Flo, Ergotron, Humanscale and Atdec
- Monitor arms for heavy, curved and ultrawide screens
- Monitor arms for corporate fit-outs: a procurement guide
- Bulk monitor arm solutions for corporate fit-outs
The CBS range
- CBS Flo Single — 2 to 7 kg, screens to 34″.
- CBS Flo Dual — the same mechanism for two screens.
- CBS Ollin, with the Ollin dual mount bar for a second screen.
- Compare against Humanscale and Thinking Works in all monitor arms.
Full terms for every brand we carry are set out on our warranty page.