100 Black Premium Metallic Foil Open Top Mylar Bags with Tear Notches Outer Size 7x10cm (2.7x3.9") Colors (Front/Inside/Back): Black/Silver/Black Outer Size: 7x10cm (2.7x3.9"), Inner Size: 6x9.5cm (2.3x3.7") *Size may vary 1-2mm. Material: Metallic Mylar, Thickness: 3 MIL (8C) Can store up to 25g of powdered products