Comprehensive A/C Maintenance Kit: This set includes 270 high-quality O-Rings in 18 sizes and 40 valve cores, perfectly equipped to handle a wide range of auto air conditioning repair needs. The O-Rings feature excellent elasticity, high temperature, oil, and wear resistance suitable for cars, water pumps, and appliances. & Versatile Valve Cores: Get 40pcs of -resistant, impact-resistant, and waterproof A/C valve cores that performance and reliability. These are made to meet the rigorous standards of most automotive A/C system maintenance and replacement, making this kit ideal for professional mechanics and DIY enthusiasts alike. Premium Valve Core Remover Tool: Enhance your A/C work with the included tool designed for quick and efficient removal and installation of valve cores. This essential tool is robust and easy to use, ensuring a smooth workflow for maintenance tasks. Extensive Application Range: Utilize this kit for a diverse array of projects beyond just car air conditioning systems. The O-Rings are also suitable for household appliances, cylinders, and faucets, providing a versatile solution for sealing and repair challenges in everyday environments. The style of plastic box is random, don't accept the specified, the actual product may have slight color difference or difference, which will not affect the use Colour:Photo Color Material:Rubber + Metal Package Contents: 270PCS O-Ring Seals Kit 40PCS A/C Valve Core Assortment with Remover Tool Only the above package content, other products are not included. Note: Light reflection 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.