General description 100% brand new and high quality O-Rings designed for Karcher lance hose nozzles. These rubber O-Ring seals are essential for maintaining the functionality of pressure washers, specifically models K2, K3, K4, K5, K6, and K7. They are made from high-quality materials, ensuring durability and practicality in use. Technical specifications Model Number: 2.640-729.0 Material: Rubber Color: As shown Package Contents: 10 x Sealing Rings Measurement allowed error: +/- 1-3 cm Usage These O-Rings are crucial for preventing reverse vaporization in steam cleaner nozzles, which can lead to burns. It is recommended to replace the O-Rings promptly when they show signs of aging or damage to ensure safe and efficient operation. Other information