This is the name given by the makers for this very useful little case; I am not sure it really conveys all the possible uses. I would keep crochet hooks in it, or a small project, my jewellery when going on holiday, pens and pencils, chargers for my phone and Kindle, just to name a few.
The cases are made from 100% certified organic cotton fabric, batiked by the women working with Global Mamas in Ghana. They fasten with a zip which goes all round the middle and are lined with recycled cotton sugar bag fabric. They are 8cms/3″ in diameter and 20cms/8″ long.