Elara PB-ZQ500 Reclozables Double Zipper Resealable Poly Storage Bags, Double Track Zip Closure, Quart Capacity, 1.75 Mil, LDPE, Food Safe, BPA Free (Case of 500) Quart Capacity, 7 x 8 Strong Low Density Polyethylene (LDPE) construction, 1.75 mil Double-track reclosable seal and white write-on blocks for dating and labeling of contents Available in four sizes: sandwich, quart, gallon, 2 gallon Safe for food contact