382-Piece Rubber O-Ring Assortment Kit Plumbing Metric Oring Nitrile Air Gasket Red Hound Auto Deluxe 382-Piece Metric O-Ring Kit Heat, water and oil resistant nitrile rubber construction Ideal for workshop and home applications, including plumbing and hydraulics Kit includes a wide assortment of the most common O-Rings Sizes from 26mm - 22mm Includes handy storage case