407 PC O-Ring Assortment Kit Plumbing Paintball Oring Nitrile Rubber Air Gasket Deluxe 407-Piece SAE O-Ring Kit with case Ideal for workshop and home applications, including plumbing and hydraulics; kit includes a wide assortment of the most common o-ring sizes Nitrile rubber construction; heat, water and oil resistant Includes handy storage case; assorted sizes from 1/8" - 2" inside diameter and 1/4" - 2-1/4" outside diameter Sizes vary from 2.6mm - 22mm inside diameter and 2mm - 3.5mm Thickness