Welco Oxygen-Based Washing Machine Tub Cleaner - Super Fast Acting ・One dose (one packet for washing machines up to 12kg) There appears to be ink staining on the back of the package. ● Will be sent anonymously via Yu-Packet Post Mini (shipping method cannot be changed) ・Will be placed in a waterproof bag. ・No cushioning material. Please understand that this is a used item before purchasing.