we love these bag . they be strong , easy to use , and price right . I be especially impressed that I order they from Amazon one day , they ship the next , and they arrive the day after that . we have buy these from Amazon on a regular basis for several year now and will continue to do so . and I think the price have come down since we start order they . I can not believe we get they so fast ! we have two dog and the 200 count last about three to four month with pick up they poop every day . my husband like they better because they be thicker than most poop bag and do not tear , especially in the winter when the ground be freeze and harder to deal with . we highly recommend they , especially for big dog and in harsh winter climate , where you have to pick up after they .