・ Basically, orders paid by 12:00 will be shipped the same day, but items dropped in a post box will be collected by 9:00 AM on weekends and holidays. ・ Support information will be provided after purchase if necessary, as discussed in "Mamushi's Flea Market Talk." This product is a C-ring, classified by Mamushi's size system. It is made of black nitrile rubber. This product is used to secure the tip of the ESAM steam section, and in the generator, mainly as a lid for the rectifier spring, as shown in the second, third, and fourth photos. Generally, the areas of use are not exposed to high pressure and act as packing, not moving parts, but are prone to water leakage.