There is a small white plastic on the waterproof ring of Haier drum washing machine.

Does the subject want to ask "There is a small white plastic on the waterproof ring of Haier drum washing machine, what is it?"? Rat board. According to the inquiry of Haier official website, the small white plastic is a rat-proof board installed in the waterproof ring of the washing machine to prevent rats from entering the washing machine, and the metal sheet at the back is a back sealing board, which is the back shell of the whole washing machine.