They are bin bags, they go in your bin, they hold rubbish whilst they are in your bin and when it is full you throw it out. These bags are not too thin but not thick, they serve the purpose of holding household waste pretty well though. They have a decent length and will fit in most domestic bins. The price is ok, on par with what you would get in the shops, but it saves me the hassle of going to get bin bags every week or so. Now I don't have to go for about 6 months.