B270pc HNBR AC O Ring Assortment O-Ring Set seal HNBR Ring Seal O Ring ReviewbP PP 270pc HNBR AC O Ring Assortment O-Ring Set seal HNBR Ring Seal O Ring P270 PCS Hnbr o-ring setPContains 18 popular sizesPHydrogenated Nitrile Butadiene Rubber (HNBR)PStorage Case Dimension: 8-18" x 1-18" x 4-14''PQuantity: 1P