Rubber o-rings in size 12x1mm suggested to use for XRAY XB4 shock absorbers in the upper cap to prevent the shocks from leaking. Fits XB4 shocks Eliminates oil leaking For upper cap Content: 10 pcs
Fits XRAY XB4 XRAY XB4 2014 Specs XRAY XB4 2WD XRAY XB4 2016 Specs XRAY XB2