Champion GJ Grab Kit 380pc Metric O-Rings

GKA380 |380 Piece Metric O-Rings • 14 Sizes • 5mm ID to 25mm ID • 70 Shore Nitrile *70 Shore Nitrile it typically means a nitrile rubber material with a hardness of 70 on the Shore durometer scale and it is suitable for applications requiring a relatively firm and chemically resistant material