The Kamenoko Tawashi(亀の子たわし or 亀の子束子?, lit., the tawashi like a young turtle) is a kind of tawashi made of fiber of a hemp palm. Because the Kamenoko Tawashi is hard, durable and waterproof, it is suitable for washing kitchen equipment, bathtubs, shoes and so on. It should not be used for delicate items.
The Kamenoko Tawashi is a registered trademark of Kamenoko Tawashi Nishio Shoten Co., Ltd. (株式会社 亀の子束子西尾商店,Kabushikigaisya Kamenoko Tawashi Nishio Shōten?) in Japan.
A nylon sponge is sometimes called nylon tawashi(ナイロンたわし,nairon tawashi?). it is suitable for washing tough stains, but it should not be used on delicate items.
A luffa sponge is called luffa tawashi(ヘチマたわし,hechima tawashi?). It is used as a body scrub.
Crocheted from 100% cotton yarn, the eco-friendly tawashi (エコたわし) is scratch-free, and is used for dishes and small cleaning jobs. The prefix eco- (エコ) indicates that it creates less pollution because it can be used without soap or other detergents.: