Features: Ensures precise refrigerants charging with our high precise R134a refrigerants filler, to enhances your car's air conditioning efficiency. Crafted from high pressure resistant materials, this tool features a transparent observation window and pressure gauge for safe and easy monitoring during use. Ideal for automotive professional, DIYer enthusiasts, and vehicle rental service staff who require reliable air conditioning maintenance tool. Perfect for vehicle maintenance checks, professional repair shops, or pre trip preparations to ensures optimally air conditioning performances. For various car models and brands, this multifunctional tool meets diverse user needs, making it essential addition to any auto maintenance toolkit. Specifications: Component:Metal Size:As Picture Shown Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings. Package includes: 1 Set Coolant Charging Tool