and excessive quality. Made of nice material, durable and reasonable to use. Delicate and exquisite, highly occasion the original equipment. Has greater heat resistance and stretchability, and is easier to install. Solid and durable, long carrier life. Without this sealing ring, the nozzle of the cleaner will trigger the phenomenon of back spray when in use, which is probably going to trigger . So when you find that the sealing ring is growing old and damaged, please update it in time. Replacement O-ring set for replacement of O-rings for various cleaner accessories. Including safety lock, element nozzle, extension, hose and iron connection. Useful spare part set for uninterrupted use. Heavy duty O-rings for pressure washers and cleaners. Fits in the again of the nozzle. on the and hose (that screws onto the machine)on all HD and HDS machines. Also fits K2 K4 K5 K6 K7 Number: 2 colour: as shown Material: Plastic Package Contents: 1 set x Seal ring (20pcs) Only the above kit content, diversified item aren't included. Note: Light and diverse displays could cause the colour of the thing within the photograph a bit varied from the real thing. The dimension allowed error is +/- 1-3cm.