This is a cylindrical refill polyethylene bag that can be used with Aprica's Niowanakute Poi, Nioi Poi, Deopot, Combi's Poitech, Smart Poi, Kururun Poi, Nappy Pail, and Sangenic. You can use it in the same way by gathering the cylindrical polyethylene and refilling the used cassette/cartridge. The genuine product for Niowanakute Poi is about 8m, but it is 5.5m for easy refilling. Please see http://youtu.be/wswSPoLYz4s for how to refill. You will be able to refill it easily once you get used to it. Products that can be refilled: ・Niowanakute Poi ・Nioi Poi ・Deopot ・Poitech/Advance/Poi-Tech※ ・Smart Poi ・Kururun Poi/Nioi Kururun Poi※ ・Nappy Pail ・Sangenic※ It can be used with cartridges with a diameter of about 17cm or less. ※For Nioi Kururun Poi, Poitech, and Sangenic, the new "Poitech Series Common Spare Cassette" is easier to refill than the old type cartridges. Details: Length: Approximately 5.5m Thickness: 0.02mm Material: Polyethylene, Made in Japan About purchase: ・Immediate purchase is possible. ・No comment is required before purchase, and no comment is required after purchase/evaluation. About price: ・Shipping fee is 190 yen (the difference is a service) ・130 yen per sheet. About shipping: ・Basically, it will be shipped the next day via Yu-Packet Post if purchased by 9 pm. ・After 9 pm, it will be shipped the day after tomorrow as the next day's order. ・I cannot respond to messages during the day, so I will reply when shipping. Notes: ・The cylindrical polyethylene is new and unused, but please understand that there may be some wrinkles and dust due to folding for shipping. Other: ・I am also raising children, and I have been using it in the living room for over 7 years, and I have not been concerned about the smell. ・I handle polyethylene bags, so I have multiple stocks. ・I have a track record since 2013 on my previous account and have received high praise from many people. Thank you.