ITEM NAME:10Pcs Car AC R134A Valve Core Needles Assortment 134a Refrigerant Heat Resi H7G1 10Pcs Car AC R134A Valve Core Needles Assortment 134a Refrigerant Heat Resi H7G1 HNBR - Hydrogenated Nitrile Butadiene Rubber - Air resistant,improves the material's thermal stability and oxidation resisitant. For use with R134a AND R12 Most of the models are in common use,does not guarantee that every car can use Worm, valve poa R12 and R134a Valve core shrader Material: Copper Temperature: -40Degrees Celsius~+150Degrees Celsius Screw Thread: M6 x 0.75 Height: 19mm Color:yellow&green Package include: 10 x AC R134A Valve Core Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.