P.T.F.E Push Fit External BushesThese machined external P.T.F.E bushes reduce elastic wear and improve both stretch and recovery.The serrated contact surfaces enable a push fit, reducing the need for adhesives. Features: Machined PTFE Reduces pole elastic wear Smooths elastic stretch and recoveryFeatures: 4.1mm with 2.4mm bore 5.3mm with 3.6mm bore 6.0mm with 3.8mm bore 6.3mm with 3.8mm bore