Made of high quality material, durable and practical to use. Delicate and exquisite, highly matches the original equipment. Has higher heat resistance and stretchability, and is easier to install. Solid and durable, long service life. Without this sealing ring, the nozzle of the steam cleaner may cause back spray of steam during use, which could lead to burns. When the sealing ring shows signs of aging or damage, replace it promptly. Replacement O-ring set for various steam cleaner accessories, including safety lock, detail nozzle, extension, steam hose, and iron connection. A useful spare part set for continuous operation. Heavy-duty O-rings compatible with pressure washers and steam cleaners. Fits behind the nozzle, on the lance and high-pressure hose (that screws onto the machine) on all HD and HDS models. Also fits K2, K3, K4, K5, K6, K7 models. Number: 2.640-729.0 Color: as shown Material: Plastic Package Contents: 1 set x Seal ring (20 pcs) Only the above package content; other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.