br new high quality. Made of high quality material, durable practical to use. Delicate exquisite, highly match the equipment. Has higher heat resistance stretchability, is easier to install. Solid durable, long service life. Without this sealing ring, the nozzle of the steam cleaner will cause the phenomenon of back spray steam when in use, which is likely to cause burns. So when you find that the sealing ring is aging damaged, please replace it in time. Replacement O-ring set f replacement of O-rings f diverse steam cleaner accessies. Including safety lock, detail nozzle, extension, steam hose iron connection. Useful spare part set f uninterrupted use. Heavy duty KARCHER O-rings f pressure washers steam cleaners. Fits behind the nozzle. on the lance HP hose (that screws onto the machine)on all HD HDS machines. Also fits K2 K3 K4 K5 K6 K7 Number: 2.640-729.0 Colour:As Shown Material:plastic Package Contents: 1 set x O Ring Pressure Washer Only the above package content, other products are not included. Note: Light reflection different displays may cause the col of the item in the picture a little different from the real thing. The measurement allowed err is 1-3cm.