100/Pack New Flat Black Plastic Zip Lock Bags Pouches 4x5cm (1.5x1.9") Colors (Front/Inside/Back): Black/Black/Black Outer Size: 4x5cm (1.5x1.9"), Inner Size: 3x4cm (1.1x1.9") *Size may vary 1-2mm. Material: Polyethylene, Thickness: 2.625 MIL (7C) Can store up to 8g of powdered products