Rubber Polyurethane Paintball Tank O-rings (10 ct)

10 count bag of plastic standard tank o-rings. Will work on paintball marker tanks and on various marker parts that are the same size. Keep well lubricated for best performance. The plastic o-rings are much more durable than rubber polyurethane o-rings. It does not stretch, expand or swell up like rubber polyurethane o-rings. Made for hundreds of uses before needing replacement.