6.5x6.1+3.1inch (16.5x15.5+8cm), volume of 8oz/0.5lb/250g, double-sided thickness of 30 wires, aluminum foil flat bottom reusable side zipper coffee bags with one-way air valve. The one-way air valve keeps the coffee beans and roasted coffee fresh. Excess gas flows from the inside to the outside without returning gas, keeping food fresh. Desinged with a hanging rope, you can take it to anywhere easily. Not only to ensure that the coffee is fresh, but also to store other nut snacks and so on. You can attach your own brand label on the surface as a retail or sample display package. We also have 1/4lib, 1lib for choice. Both Valve and Non volve for choice, price is based on non volve one.