Set of 4 all-round filters, perfect for maintaining lower urinary tract health. Includes one packet of cleaning powder specifically for Pure Crystal. The box originally contained 3 packets, but 2 were used, so I'm including the remaining 1 packet. I'm selling these because I changed water dispensers. I will ship via Rakuraku Mercari delivery, so I will remove the filters from the outer packaging for packing. (The contents are individually wrapped, so please don't worry.) Please purchase only if you understand. - Brand: GEX - Type: All-round type - Quantity: 4 filters - Purpose: Maintaining lower urinary tract health - Filter Material: Microfiber, Calcium, Polymer - How to Use: Soak in water Thank you for looking.