All o-rings are new and manufactured with high quality standards.
O-rings are bagged per individual rebuild.
Full List of included o-rings with placement where available comes with every kit.
Sizing charts available for printout from the manufacturers (Orings-Online) website free of charge.
Kit includes all o-rings needed to rebuild your marker. (This includes any and all regulators and parts shown in the original manual that are serviceable by the markers owner.)