Why a drink can still tip: rocking chair setup checks
Steadi does not attach to a chair or stop its movement. Do not place it on a moving armrest or in the rocker path.

A wider base has limits
Steadi does not attach to a chair or stop its movement. Do not place it on a moving armrest or in the rocker path.
Check the support before the drink
Choose a stable side table outside the chair’s full movement. Leave the entire 5.2-inch base supported and test a comfortable reach while the chair is still.
Leave room for real use
Keep the chair free to move while the drink stays on a separate supported surface. A comfortable reach and clearance around the rockers matter more than crowding the drink onto an armrest.
Start again with a new container
A compatible base measures 2–3.15 inches across, inclusive. Check full seating and handle or boot clearance. An open drink remains open: Steadi is not a lid or a guarantee against spills.