Perfect Compatibility: Specifically designed for K2, K3, K4, K5, K6, and K7 s, this O-ring seal set ensures a and leak-free performance, enhancing the efficiency of your machine. Premium Quality Material: these O-rings resist wear and tear, ensuring long-lasting seals and uninterrupted performance. Ideal for both professional and domestic use, they maintain elasticity and shape under pressure. Easy Installation: This set includes all necessary O-rings for a complete replacement, making installation straightforward and hassle-free. It's the perfect DIY solution to maintain your at efficiency. Enhanced Performance: The O-rings in this set are engineered to withstand high pressure, preventing leaks and ensuring optimal performance of your . They are essential for maintaining the operational integrity of your equipment. Cost-Effective Maintenance: Regular replacement of O-rings helps prevent larger, more expensive repairs. This set offers a practical, economical solution to keep your running smoothly without the need for professional servicing. Color: As shown Material: Silicone Package Contents: 40 x Seal ring 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.