We have 3 greyhounds and as you can imagine there's just a bit of poop to pick up. These are the best poop bags we've found because: 1)They are biodegradable so we can put them in our Green Bin. 2)They smell nice so before you use them you get a nice little whiff of lavender. 3)Compared to many other poop bags they are relatively easy to open... even while holding 3 leashes! 4)They are comparable in cost to other poop bags on the market. 5)I am a sucker for marketing and I must admit too that I love the packaging! Thank you PoopBags!