... is base on the material,size,bag type,printing.aluminum foil pouch for nuts packingFood safety, QS certificateHigh quality, Reasonable ... priceitem aluminum foil pouchmaterial PET/VMPET/LDPEthickness 0.1mmBag type stand up pouch without zip locksize 13*20+2 ... ziplock bag, stand up bag with ziplock, Stand up bag without ziplock, pillow bag, side gusset bag, side gusset bag with ...