Game-room drink tray, shelf or base?
Choose the support before the accessory.
A tray
A tray organizes items but still depends on the surface below. It is not automatically level on a soft seat.
A shelf
Check depth and attachment, and keep it outside cue and walking paths.
Steadi
The holder fits a compatible container and needs a full 5.2-inch supported footprint. It does not attach to the furniture.