Dust-Proof :The enclosed filter box allows you to safely place your filter paper against dust and moisture. Flexible rotating shaft for easy access.Easy to paste:The back is pasted by magnet adsorption. It will not leave traces, and the paste is firm. It is easy to change the place.It is good partner of your coffee filter machine, filter coffee grinder, coffee maker.High quality material:The product strictly selects Japanese PP materials.No peculiar smell. The product is firm and not easy to break.It can hold your coffee filter cup firmlyU-shaped design:The U-shaped design can make the extraction of filter paper more convenient.It will be a good solution to store and organize your coffee filter cone paper.Save space:It wont take up coffee table space, because it can be magnetically coffee filter bag adsorbed on the refrigerator at will.