To be honest, I originally gave them three stars and was going to give a negative review. I ordered 300 of the zipper mesh back in January and they shipped me 300 of the drawstring mesh. I changed my review because after one phone call they apologized and shipped the correct order right out. The bags themselves are really strong and have held up for 6 months now with heavy use.I love the zipper. This company made a mistake and then made it right.