Commonly enough, these are plastic grocery bags. Ggbin's latest development. We have two sizes for selection. One is 21.1" by 14.14", the other is 18.9"x 11.8". Both two ones are 40-count per pack. These bags are available in standard grocery and supermarket size. Fit perfectly into bagging stand for quick and easy to use. Also an adequate home supplies to have for trash cans and garage sales. Most importantly, these bags are the best economical choice for volunteer work. Have a try, you won't be disappointed.