Material:Copper Alloy Specification:As shown in the figure Packing: 1 pcs One-way Valve Fluorine Nozzle Features: 1. The fluorinated check valve is made of durable, high-quality materials with good strength and stability, and has a long service life to ensure lasting use. 2. Can be applied to air conditioning, refrigerator, freezer and other cooling systems to add and replace refrigerant, widely used. 3. Check valve design can effectively prevent refrigerant reflux, improve fluorination efficiency, good tightness and high safety. 4. The gap-type design makes the fluorine nozzle easy to align, simple and convenient to use, without professional technology. Note: 1.Please allow 0.1-0.2cm differences due to manual measurement, thanks. 2.Please understand because of the light irradiation or computer display difference, so I can't guarantee photos and real color is the same.