Samplebags are used for giftwrapping or shipment. The bags are made out of brown stronog paper and these small brown paper bags can be closed with a metal-clips or use tape if you prefer. Folding block bottom bags are made from eco-friendly paper and re-usable if you close them with a metal clip through the small hole in top of the envelope. Punch-hole sample bags are grooved and from the brand flexiPAK, made in german factory.