Widely applicable: The automotive AC valve core remover and installer tool set is suitable for R134A and R1234YF automotive air conditioning systems and is compatible with standard Schrader valves. The valve air conditioning valve cores are compatible with R12, R134a, and R1234YF automotive and household air-conditioning accessories. Quality construction: The valve core remover and installer tool kit is made of solid and sturdy metal materials, reliable and durable. The parts are oil-resistant, impact-resistant, corrosion-resistant, waterproof, not easy to chip or break, supporting long-term use. Easy to store and use: The valve core remover and installer tool kit comes with a storage box, making it easy to organize and store without occupying much space. It is simple to operate, allowing the removal or installation process to be completed within minutes. This product provides efficient and practical valve replacement. Practical tools: The valve core remover and installer tool kit includes multiple rubber rings that can be used to replace leaking refrigerant valve cores. These components are oil-resistant and wear-resistant. It is ideal for use with cars, trucks, motorcycles, bicycles, ATVs, and other vehicles. Color: As shown in photo Material: Metal Package Contents: 2 x Valve core quick remover installer 2 x R1234YF service replacement port 1 x Remover installer tool 10 x R134a refrigeration Schrader valve cores (random colors, no specific color selection) 20 x R12 refrigeration Schrader valve cores (random colors, no specific color selection) 5 x R1234YF refrigeration Schrader valve cores (random colors, no specific color selection) 20 x O-ring rubber seals Note: The package includes only the items listed above. Other items are not included. Light and display differences may cause slight variations between the color of the item in the photo and the actual product. Measurement may vary by +/- 1-3 cm.