Nikken Research Institute Dust Mite Catcher Robo Refill Attractant Mat 1 piece Regular Size (Mat only) I ended up buying too many, so I'd like to offer them to someone who can use them. Although it is new and unused, please purchase only if you understand that it has been stored at home. Please refrain from purchasing if you are sensitive to this. ★ 2 pieces for 2050 yen, please let me know before purchasing if you wish.