Increase the footprint of your chair in soft ground to help resist sinking. Ball Feet are an easier-to-clean alternative to Ground Sheets when conditions are muddy or wet. Sold as a set of four.
Features

Get a more stable seat with this set of 4 ball feet made from VIBRAM rubber.

45mm is compatible with Chair One, Chair Two, Chair One Mini, Speed Stool, and Chair Zero.

55mm is compatible with Chair One XL, Swivel Chair, Sunset Chair, Savanna Chair, and Bench One.