If your Aeron lever lock arm rests are loose and wobble, try this complete shim kit that will cover both arm rests. Three sizes are included to cover small and large wobbles.

Resilient and reusable 3D printed design

(TWO) 0.5mm Shims

(TWO) 0.7mm Shims

(TWO) 1mm Shims

(TWO) 1.2mm Shims