Secretlab Premium Extra Small Casters (set of 5)

Smaller wheels lower your seat height so you can plant your feet firmly on the floor for better support.
Compatible with Secretlab chairs.
Features
Reduced caster diameter lowers chair height by 10mm.
High-performance, precision-sealed steel ball bearings for smooth, quiet rolling and swiveling in any direction.
Enhanced durability in a small form factor with reinforced steel axles and anodized aluminum construction.
Premium TPE wheels are gentle on most surfaces.
Simple, toolless installation.