SPECIFICATIONS - The size of these small plastic bags: width= 1.57''/40MM, length=1.7''/45MM. The measured double-sided thickness is 4.0 Mil (the single-sided thickness is 2Mil=0.002"), 100 counttransparent small ziplock bag in per package. MATERIAL - Low-Density Polyethylene, (LDPE), food grade safe, odorless, non-toxic, eco-friendly. Anti-stretch, anti-tear and crush-resistance, thick . This mini ziplock bag are not the thickest, but definitely appropriate for you to hold small items, and is plastic reclosable ziplock bag. RESEALABLE ZIPPER - These storage plastic bags can be easily opened and closed with instant, secure self-sealing zippers that can be reused multiple times. Tool storage, activities, storage, packaging, carrying and transportation, etc. WATERPROOF&SEAL - Equipped with reliable concave/convex structure sealing strip, the small zipper bags can provide strong biting force to protect the storage from dust and moisture for long. Great for organizing tiny and small items in every room of your house, small baggies keep things so nice and organized! Make life easier and simpler. STORAGE AND ORGANIZATION - These small plastic zipper bags are versatile, you can make full use of them to organize your small objects, such as candy, seeds, buttons, beads, Jewelry, coins, paper clips, fishing gear, ear plugs, screws, bolts, embroidery floss, etc.