Buna-N O-Ring Splicing Kit, 70A Durometer, Black, Metric Sizes, 9 Pieces, 1 Meter Each Made of Buna-nitrile for use with a variety of fluids and hydrocarbons and has a durometer (hardness) of 70A Splicing Kit includes 9 pieces of O-ring cord in metric cross sections, 1 meter of cord per piece Plastic (Color may vary) box with lid card, cord stock, splicing jig, cutting tool, and adhesive For use across a wide temperature range from -40 degrees F (-40 degrees C) to 212 degrees F (100 degrees C)