Comparison : Item # N2-04020P4-6003, “Poly Glide” Extra Hard Crown Tread, Solid Polyurethane Wheels Complete with Ball Bearings and T-bushings
Item # N2-05020P4-6003, “Poly Glide” Extra Hard Crown Tread, Solid Polyurethane Wheels Complete with Ball Bearings and T-bushings
Item # N2-06020P4-6003, “Poly Glide” Extra Hard Crown Tread, Solid Polyurethane Wheels Complete with Ball Bearings and T-bushings
Item # N2-08020P4-6003, “Poly Glide” Extra Hard Crown Tread, Solid Polyurethane Wheels Complete with Ball Bearings and T-bushings
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