Package include: 100pcs pacakging mylar bags with front frosted window and hanging hole ,perfect for small business display! About sizethe inner size is its usable size ,we provide accurate size chart, please check the size chart carefully before placing order! Resealable zipper: designed with super strong zipper, these sample bags are resealable and smell proof ,help to keep the item inside from moisture ,keep odor in bag. Premium quality:these sample bags is made of polyethylene , aluminum foil and mylar, composed of three layers of materials. food-grade ,durable, non-toxic and tasteless. Wide applications: can be widely used for packing snacks,beauty accessories,electronics,jewelry,craft supplies,nail accessories,coffee beans,bath salt,sweets ,nuts ,phone case ,dried flowers ,etc !