1.Clear resealable zipper bags, width 3'' x 4'' height (zipper not included), 2 Mil (.002'') thick. 300pcs can meet your daily use for consumable poly bags. | 2.Food contact safe: FDA & RoHS & EC/1935/2004 & German LFGB certified, made of low density polyethylene material (LDPE), please feel free to use. 23 kinds of heavy metal/restricted substances tested and NOT detected. N-hexane and Xylene extractives tested, result 1.65%(limit 6.4%)/5.56%(limit 9.8%). | 3.Waterproof, dustproof and highly airtight, ideal for protecting, sorting and selling seed beads, earrings and other small items. | 4.Secure reclosable seal that will stay firmly closed, ensure the safety of the item, so it’s convenient to carry with you in case of emergency. | 5.Excellent for organizing and separating samples, candy, jewelry, board game pieces, coins, craft supplies, pills, office supplies, school supplies, hardware, collectibles, yarn, toys, merchandise for resale, or makeup.