This bag model is easy to understand. Just like the letter Q, there is an opening at the top of it , the bag covered your product completely. It actually packs the product inside, and the whole body of the product is packed in the air column bag. It can protect your product with 360° cushioning without dead angle. Therefore, it prevent items from shifting, bruising, or breaking during transit. Because of this feature, Q bags are ideal packaging materials for packaging fragile products such as glass bottles, red wine, electronic products, cosmetics and so on.