High Quality ABEC-3 bearings
Replace stock bearings by these high quality ABEC-3 bearings with much higher tolerance and smoothness and feel a much difference in response.
●Bearing 681ZZ (1.5x4x2mm)
Quantity: 2 pieces
If it doesn't specify which ABEC rating, it's likely that's it's ABEC-1. ABEC-3 bearings are much tighter in tolerance than ABEC-1 bearings, thus provide much higher accuracy and smoothness.