DSM&T Mylar Bags Ziplock Long Term Food Storage Silver 5x8 Inch 100pcs Mylar food storage bags A bag for packing food with aluminum foil. 1pack: 100pcs, Silver color makes products inside invisible. Zippers make putting in and taking out products easy. Can be used again with a zipper Material is made of PET + Aluminum foil + LLDPE. 4.0mils width makes it sturdy which does not damage packaging by external shocks.