Yes4All Wobble Balance Board for Standing Desk - Anti-Fatigue Office Foam Pad with Massage Ball | Standing Desk Accessories, Rocker Board for Home & Office | Improve Posture & Reduce Back Pain While Working

SURFACE1. The pebbled cushioned surface of this wobble board provides the right/perfect level of comfort to stand on for hours. (In contrast, the surfaces of some other wobble-boards are too firm for me.)2. It's neither slippery, nor does it grip too much.3. I do like that on my model there is NO central knob for foot massage. (I would not need such a knob & might be in my way as I move around/turn 60-90 degrees.)4. While a carpeted concrete floor, even with regular running shoes on, seems to be too firm for me to work by a standing desk, the surface of this wobble board allows me to work for hours standing/moving, rather than sitting for 8-10 hours a day, (which I strive to avoid given the known significant health risks.)WOBBLE1. The wobble is gentle and SAFE for many hours of work at a standing desk; it provides just enough flexibility to move a bit around.2. It is permissive to complete the work at a wide/wider computer desk, turn without loosing balance, quickly step on-off etc.3. It allows me to move/"fidget" enough so that I readily get up, rather than pile up items around me for ready reach. I can keep items better organized and manage my desk ergonomically better, with greater flexibility.4. Indirectly, this moving/fidgeting prompts me more readily take a break to walk to get some water, run up/down a flight of stairs etc; I refresh better, I am more productive and so on.5. In contrast, I also have a board in my office with greater wobble & spin, but I do have to pay attention to the wobble on that one to be safe - that's more like a mini-excercise, not for working for an hour or more.